Slashdot Mirror

Hugh Pickens writes "Will Oremus writes that when something momentous is unfolding—the Arab Spring, Hurricane Sandy, Friday's horrific elementary school shooting in Connecticut—Twitter is the world's fastest, most comprehensive, and least reliable source of breaking news and in ongoing events like natural disasters, the results of Twitter misinformation can be potentially deadly. During Sandy, for instance, some tweets helped emergency responders figure out where to direct resources. Others provoked needless panic, such as one claiming that the Coney Island hospital was on fire, and a few were downright dangerous, such as the one claiming that people should stop using 911 because the lines were jammed. Now a research team at Yahoo has analyzed tweets from Chile's 2010 earthquake and looked at the potential of machine-learning algorithms to automatically assess the credibility of information tweeted during a disaster. A machine-learning classifier developed by the researchers uses 16 features to assess the credibility of newsworthy tweets and identified the features that make information more credible: credible tweets tend to be longer and include URLs; credible tweeters have higher follower counts; credible tweets are negative rather than positive in tone; and credible tweets do not include question marks, exclamation marks, or first- or third-person pronouns. Researchers at India's Institute of Information Technology also found that credible tweets are less likely to contain swear words (PDF) and significantly more likely to contain frowny emoticons than smiley faces. The bottom line is that an algorithm has the potential to work much faster than a human, and as it improves, it could evolve into an invaluable 'first opinion' for flagging news items on Twitter that might not be true writes Oremus. 'Even that wouldn't fully prevent Twitter lies from spreading or misleading people. But it might at least make their purveyors a little less comfortable and a little less smug.'"

SternisheFan writes with an excerpt from Bad Astronomer Phil Plait, writing at Slate: "Before she came back to Earth in a ball of fire surrounding her Russian re-entry capsule, astronaut Sunita Williams took time out of her packing for the trip home to give a nickel tour of the International Space Station. ... I know the video's long, but if you have the time I do suggest watching the whole thing. I have very mixed feelings about the space station; it cost a lot of money, and in my opinion it hasn't lived up to the scientific potential NASA promised when it was being designed. But watching this video reminded me of the good that's come out of it: There is science being done there; we're learning how to design and build hardware for long-term space travel; we're learning just how to live in space (and NASA just announced it will be sending humans into space for an entire year, an unprecedented experiment); and we're finding new ways for nations and individuals to cooperate in space."

An anonymous reader writes "Last year, when we discussed news that The Hobbit would be filmed at 48 frames per second, instead of the standard 24, many were skeptical that format would take hold. Now that the film has been released, an article at Slate concedes that it's a bit awkward and takes a while to get used to, but ends up being to the benefit of the film and the entire industry as well. 'The 48 fps version of The Hobbit is weird, that's true. It's distracting as hell, yes yes yes. Yet it's also something that you've never seen before, and is, in its way, amazing. Taken all together, and without the prejudice of film-buffery, Jackson's experiment is not a flop. It's a strange, unsettling success. ... It does not mark the imposition from on high of a newer, better standard — one frame rate to rule them all (and in the darkness bind them). It's more like a shift away from standards altogether. With the digital projection systems now in place, filmmakers can choose the frame rate that makes most sense for them, from one project to the next.'"

The Bad Astronomer writes "Using Hubble Space Telescope, astronomers have spotted seven galaxies that are all over 13 billion light years away... including one that appears to be a record breaker at a staggering 13.3+ billion light years distant. That one is seen as it was only 380 million years after the Big Bang. This observation reaches into the era of the young cosmos when stars were first forming, and allows astronomers to better understand what the Universe was like back then — a time we know very little about."

The Bad Astronomer writes "A recent hearing of the Congressional Committee on Oversight and Government Reform became a bully pulpit for antivaccination rhetoric when Representatives Dan Burton (R-Ind.) and Dennis Kucinich (D-Oh.) made speeches connecting vaccines to autism — a connection that medical experts have shown does not exist. Although there were actual medical researchers there as witnesses, they were mostly berated by the Congressmen on the panel. Vaccines are one of the most successful medical advancements in human history, having saved hundreds of millions of lives, and after copious studies have been shown to have no connection with autism. Despite this, a vocal antivax lobby exists, including, clearly, members of Congress. In part this is why preventable and potentially fatal diseases like pertussis and measles are once again on the rise."

An anonymous reader writes "The Boring 2012 Conference, the celebration of unexciting things served with dry British humor, now belongs to the wastepaper basket of history. Correspondents at the third annual London conference report that speakers covered a range of such dull topics as supermarket self-service checkouts; a photographic survey of results produced by breakfast toasters; a web site tracking the physical heights of celebrities; and the use of Google Maps to the chart the location of IBM cash registers around London." Funny thing is, the talks described actually sound fascinating.

JameskPratt writes "This Slate article talks about a single line of code — 10 PRINT CHR$ (205.5 + RND (1)); : GOTO 10 — and how it manages to create a complicated maze without the use of a loop, variables and without very complicated syntax." Now that amazing snippet of code is the basis of a book, and the book is freely downloadable.

An anonymous reader sent word that astronomers have discovered an absolutely enormous black hole residing in a galaxy that seems too small for it. In a new study (PDF), researchers looked at galaxy NGC 1277 and found that its central black hole weighed in at roughly 17 billion solar masses. Quoting Phil Plait: "The problem is, that’s far more massive than the central bulge of NGC 1277 would suggest the black hole should be. It’s well over half the total mass of the bulge! In fact, the entire mass of the galaxy is about 120 billion solar masses, which means the black hole at its heart is 14 percent of the total galaxy’s mass; compare that to the Milky Way’s black hole mass of 0.01 percent and you’ll see why astronomers were shocked."

The Bad Astronomer writes "Just in time for the holiday season, the NASA space probe MESSENGER appears to have all but confirmed the existence of ice at Mercury's north pole. Ice has long been suspected to be hiding in permanently shadowed areas in deep craters at the planet's pole, but new data show several converging lines of evidence (thermal and visible light mapping, radar, neutron emission) that as much as a trillion tons of ice may be buried just centimeters deep under the surface. Scientists also see evidence of organic (carbon-based) molecules as well. That's not life, but it's more of an indication that volatile compounds can exist on the solar system's innermost planet." Further, astroengine writes "New results from the MESSENGER spacecraft not only confirm that the planet closest to the sun has ice inside shaded craters near the north pole, but that a thin layer of very dark organic material seems to be covering a good part of the frozen water. Both likely arrived via comets or asteroids millions — or hundreds of millions — of years ago."

hypnosec writes "Amidst the ongoing civil war, Syria has gone off the Internet as of a few hours ago, with all the 84 IP block within the country unreachable from the outside. Renesys, a research firm keeping tabs on the health of the Internet, reported at about 5:25 ET that Syria's Internet connectivity has been shut down. The internet traffic from outside to Syrian IP addresses is going undelivered, and anything coming from within the country is not reaching the Internet. Akamai has tweeted that its traffic data supports what Renesys has observed." Reader trickstyhobbit adds a report from Slate that the connection "appear[s] to have been knocked off line by heavy fighting earlier this morning. They are also reporting that the shutdown may have been intentional to aid in a government operation."

An article at Ars examines three members of the U.S. House of Representatives who are seeking chairmanship of its Committee on Space, Science, and Technology. Dana Rohrabacher (R-CA) said in an interview, "My analysis is that in the global warming debate, we won. There were a lot of scientists who were just going along with the flow on the idea that mankind was causing a change in the world's climate. I think that after 10 years of debate, we can show that that there are hundreds if not thousands of scientists who have come over to being skeptics, and I don't know anyone [who was a skeptic] who became a believer in global warming." James Sensenbrenner (R-WI) has a similar record of opposing climate change, as does Lamar Smith (R-TX). Relatedly, Phil Plait, a.k.a. The Bad Astronomer, has posted an article highlighting how U.S. Senator Marco Rubio (R-FL), a member of the Senate's Commerce, Science and Transportation Committee, has declined to answer a question about how old the Earth is, calling it "one of the great mysteries."

Hugh Pickens writes "Sarah Tory reports that the debut of Israel's Iron Dome missile defense shield has added a new element to the conflict between Israel and Palestinians in the Gaza strip, one that military officials are calling a 'game-changer.' Israeli officials are claiming that the shield is destroying 90 percent of missiles and rockets it aims at that have been fired into southern Israel by Hamas. This level of success is unprecedented compared with older missile defense systems such as the American-made Patriot model used during the 1991 Gulf War. The missile-defense system can detect rocket launches and then determine the projectiles' flight paths and only intercepts rocket or artillery shells if they are headed for populated areas or sensitive targets; the others it allows to land. It takes a lot of raw computing power to rapidly build a ballistic profile of a fast-incoming projectile, make a series of quick decisions concerning potential lethality, and launch a countermeasure capable of intercepting said projectile in-flight. One reason Iron Dome is showing a much more robust capability than the Patriot system did is simply that its battle control hardware and software are several generations more advanced than those early interceptor systems. 'Israeli officials point out that Iron Dome saves money despite the fact that the interceptors cost up to $100,000 each,' writes Tory. 'The cost of rebuilding a neighborhood destroyed by a rocket attack — not to mention people wounded and lives lost — would be far greater than the cost of the interceptor.' Most important, the system buys Israel time, allowing it to plan out an appropriate response without the political pressure that would be generated by hundreds of potential deaths."

The Bad Astronomer writes "While nearly a thousand planets are known to orbit other stars, getting direct pictures of them is extremely difficult due to the glare from their host stars. Fewer than a dozen images of exoplanets exist. However, we can now add one more to the list: Kappa Andromedae b, or Kap And b for short. It's about 170 light years away, and orbits Kappa And, a massive star bright enough to see with the naked eye. One hitch: its mass puts it right at the upper limit for a planet, and it may edge into brown dwarf territory. Further observations are needed to pin its mass down."

The Bad Astronomer writes "While nearly a thousand planets are known to orbit other stars, getting direct pictures of them is extremely difficult due to the glare from their host stars. Fewer than a dozen images of exoplanets exist. However, we can now add one more to the list: Kappa Andromedae b, or Kap And b for short. It's about 170 light years away, and orbits Kappa And, a massive star bright enough to see with the naked eye. One hitch: its mass puts it right at the upper limit for a planet, and it may edge into brown dwarf territory. Further observations are needed to pin its mass down."

New submitter lebijoutier writes "According to Slate, '[Patrick] Tresset, for one, discovered a novel way to stay mentally healthy with the help of drugs and still pursue what was once his life's work: He created robots that can draw portraits. Far from a mere novelty, his research is telling us more about both the creative process in humans and how we relate emotionally to machines. ... Most of us still don't have robots in the home, but for decades now, we've been waiting for machines to do our bidding. Tresset believes that it might be a good idea to imbue all personal robots with some sort of artistic skill to encourage an emotional bond — it might allow for more trust, perhaps, though you can also see how overly identifying with a machine might create some existential questions.' The article also has a fascinating video of five of his robots sketching a single human."

Hugh Pickens writes "PBS reports on a proposal of arming Syrian rebels with a force equalizer to make a decisive blow against Bashar al-Assad's ruling regime — an idea that has so far failed to take hold inside the Obama administration because of serious concerns about flooding a troubled region with dangerous weapons that someday might fall into the wrong hands. Could sophisticated weapons, such as anti-aircraft missile systems, be outfitted with mechanisms that would disable them if they fell into the wrong hands? According to military analyst Anthony Cordesman the U.S. could modify Stinger anti-aircraft missiles and anti-tank weapons with batteries that cease functioning in a few weeks or months or the weapons could be built to require authentication codes before they are enabled to work. "I think it would be relatively decisive," says Cordesman. ... Another idea is to install GPS-disabling devices so that Stinger missiles only worked in a designated geographic area, such as only in Syria. Such weapons, it is believed, might tip the balance in favor of the rebels in the same way that Stinger anti-aircraft missiles, provided by the United States to the Afghan Mujahedeen, helped expel the Soviet Union from Afghanistan. Cordesman stressed that this type of weapon would have to be thoroughly tested to make sure the controls work and could not be undone. 'You could not transfer these types of weapons without these types of protections. You simply have no way to know where they would end up, how they would be transferred, what would happen to them.'"

An anonymous reader writes "While New York University's Langone Medical Center in lower Manhattan was the site of heroism as 260 patients were evacuated from flooded floors and a nearly complete loss of power, similar floods at NYU's nearby Smilow Research Building killed thousands of laboratory mice, including genetically altered specimens in-bred over many generations as research subjects for melanoma and other diseases. Other laboratory animals, cells, and living tissue used in medical research were also lost; because of the gestation period involved, some projects were likely set back a number of years. Past experience with storms such as Allison in Houston and Katrina in New Orleans has shown that keeping laboratory animals in basements is not good practice, but research institutions keep doing it anyway."

Hugh Pickens writes "Lewis M. Cohen reports that this Election Day, Massachusetts is poised to approve the Death With Dignity Act, a modernized, sanitized, politically palatable term that replaces the now-antiquated expression 'physician-assisted suicide.' Oregon's Death With Dignity Act has been in effect for the past 14 years, and the state of Washington followed suit with a similar law in 2008. But the Massachusetts ballot question has the potential to turn death with dignity from a legislative experiment into the new national norm, because the state is the home of America's leading medical publication (the New England Journal of Medicine), hospital (Massachusetts General), and four medical schools (Harvard, Boston University, University of Massachusetts, and Tufts). If the act passes in Massachusetts, other states that have previously had unsuccessful campaigns will certainly be emboldened to revisit this subject. The initiative would allow terminally ill patients with six months or less to live to request from their doctor a prescription for a lethal dose of a drug. Doctors do not have to offer the option at all, and patients must make three requests, two verbal and one written. They must self-administer the drug, which would be ingested. The patients must be deemed capable of making an informed decision. 'It's all about choice,' says George Eighmey, a key player in instituting the Oregon law, defending it against repeal and shepherding it into reality. 'You decide. No one else can decide for you. No can can force you into it, coerce you into it or even suggest it to you unless you make a statement: "I don't want to live like this any more" or "I'm interested in that law out there, doctor, can you give me something to alleviate this pain and suffering."'"

Penurious Penguin writes "Last year a Slashdot story mentioned the case of Daniel David Rigmaiden, or 'the Hacker.' With the help of an IMSI-catcher device, law enforcement had been able to locate and arrest the elusive 'Hacker,' leading to U.S. v. Rigmaiden. But far more elusive than the 'Hacker,' is the IMSI-catcher device itself — particularly the legalities governing its use. The secrecy and unconstitutionality of these Man In The Middle devices, i.e. 'stingrays,' has caught some attention. The EFF and ACLU have submitted an amicus brief in the Rigmaiden case; and EPIC, after filing an FOIA request in February and receiving a grossly redacted 67 out of 25,000 (6,000 classified) pages on the "stingray" devices, has now requested a district judge expedite disclosure of all documents. Some Judges also seem wary of the 'stingray,' having expressed concerns that their use violates the Fourth Amendment; and additionally, that information explaining how the technology is used remains too obscure. Perhaps the most controversial aspect of ISMI-catchers is their several-kilometer range. When a "stingray" is used to spoof a cellphone tower, thousands of innocent users may be collaterally involved. And while the government claims to delete all gathered data unrelated to the target, it also means no one else can know what that data really was. The government claims that because only attributes of calls — but not their content — are captured in the attack, search warrants aren't necessary." (More, below.) Penurious Penguin continues, "The use of a pen-register (outgoing) and trap & trace (incoming) device, requires little more than a mewl of penal curiosity before a court, and no warrant or follow-up on the case is needed. The pen/trap seems unwieldy enough, as the EFF explains:

"Most worrisome, we've heard some reports of the government using pen/trap taps to intercept content that should require a wiretap order: specifically, the content of SMS text messages, as well as "post-cut-through dialed digits" (digits you dial after your call is connected, like your banking PIN number, your prescription refill numbers, or your vote for American Idol). intercept information about your Internet communications as well."

Precisely what data these "stingrays" collect will hopefully be soon revealed through such efforts as those of EPIC. It should be noted that the Stingray is one of multiple devices with the same application. The Stingray and several others are trademarks of the Harris Corporation. Some are quite pricey ($75,000), and others are, as mentioned last year by a Slashdot reader, peculiarly affordable — and available. For a more comprehensive overview of the subject, see this Wall Street Journal article."

theodp writes "Mother Jones reports on Obama's Digital Gurus, the top-secret team of analytics engineers and scientists led by hipster CTO Harper Reed who work on text analytics, social network/media analysis, web personalization, computational advertising, and online experiments & testing from the campaign's Chicago HQ and satellite offices. For OFA (Obama for America), writes Tim Murphy, there is no such thing as Too Much Information. 'In terms of just the sheer amount of data that political candidates have on you,' says UNC Prof Daniel Kreiss, 'I think everyone finds it creepy.' Still playing catch-up to OFA in its data efforts is Team Romney, which reportedly hired former employees from places like Google Analytics, Apple, Ominture, and Overstock.com in an attempt to reverse engineer the Obama campaign's strategy."

Hugh Pickens writes writes "Hakeem Oluseyi, an astronomer at the Florida Institute of Technology and president of the African Astronomical Society, says his goal is to put one research telescope in every country, starting with African and Southern Hemisphere nations because there is now an amazing opportunity for small telescopes to discover and characterize new planetary systems, as well as measure the structure of the Milky Way. 'Astronomers are no longer looking at high-definition pictures but at HD movies, scanning for objects that change and for transient ones,' says Oluseyi. 'A 4-inch telescope was used to discover the first exoplanet by the transit method, where you watch the brightness vary.' Small telescopes capable to doing real science are a lot cheaper than people think. A 1-meter telescope costs $300,000 but reduce the size by 60 percent, and it falls to just $30,000. For example the Kilodegree Extremely Little Telescope (KELT) uses hardware costing less than $75,000 to look at millions of very bright stars at once, over broad sections of sky, and at low resolution to see if the starlight dims just a little — an indication that a planet has crossed in front of the star. The KELT team has already discovered the existence of a very unusual faraway planet — KELT-1b, a super hot, super dense ball of metallic hydrogen so massive that it may better be described as a 'failed star' and located so close to its star that it whips through an entire 'yearly' orbit in a little over a day."

Slashdot contributor Bennett Haselton writes with "a response to some of the objections raised to my last article, about a design for a distributed social networking protocol, which would allow for decentralized (and censorship-resistant) hosting of social networking accounts, while supporting all of the same features as sites like Facebook." Social networking is no longer new; whether you consider it to have started with online communities in the mid-90s or with the beginnings of sites many people still use today. As its popularity has surged, it has grown in limited ways; modern social networks have made communication between users easier, but they've also made users easier to market to advertisers as well. There's no question that the future of social networking holds more changes that can both help and harm users — perhaps something like what Bennett suggests could serve to mitigate that harm. Read on for the rest of his thoughts.

In an article last month, I argued that users would be better served by a centralized social networking system where users could store profiles on a server of their choice, rather than a centralized system like Facebook that stores everyone's accounts for them. My main point was that if you could switch your account easily between different hosting providers (preferably if the protocol allowed you to link your account to a domain name that you own, the way that website owners can easily switch from one hosting company to another if they own their own domain name), then it would be much harder to censor content in a distributed system. If a hosting provider removed your content or threatened to kick you off unless you removed it yourself, you could just migrate your profile to a new hosting provider, and all of your existing links to friends/groups/events would continue to work.

Many commenters raised objections, some of which I think can be countered fairly simply, and others that raise more complicated issues. I usually don't do follow-up articles addressing all of the objections to a previous article (unless I'm running a contest asking people to submit the best arguments against an idea of mine), but I think the migration to an open social networking protocol is such an important long-term goal, that I want to give voice to the objections and present what I think is the best counter-argument against each of them.

The skeptics' questions fell into two categories: (1) Why would anybody ever switch away from Facebook to trying out the new system? and (2) Even if people did switch, would the new distributed system be better? ("Better" both in the short term -- would trial users see enough benefit to get them to keep using it regularly? — and in the long term — would spammers and other attackers be able to undermine it?)

To begin with the question of why anybody would switch: I don't think that most people would switch because they had analyzed the arguments for and against a distributed vs. centralized system. I think the only reason most users would ever try a social networking site other than Facebook, would be because a trendy company like Google launched it and threw their weight behind it. Why else have 400 million people signed up for Google+, almost half as many as are on Facebook? Despite the hype about features like "circles", I think it's safe to say that most of people jumped on board because Google launched it and gave it a big push, and Google is cool. (As one commenter "DragonWriter" pointed out, Google had earlier launched or collaborated on some projects for open social networking -- but none of these were ever given the big push that accompanied the release of Google+. So that's probably why we never heard of those other projects, not because of any intrinsic merits of the ideas themselves. To get people using something, Google would have to launch it and promote it — but if Google does do those things, people will sign up.)

So imagine if, at the same time that Google had released Google+, they had also released an open source server package that anybody could use to set up their own Google+ node, completely interoperable with all Google-hosted accounts, and where the user could have complete control over their hosted content. Presumably those 400 million users who signed up with Google+, would have still signed up for this hypothetical "open Google+", since it does everything that the real Google+ does. Some of those users would have taken the option to run their own nodes, if it had been available. And then you'd have additional users who didn't sign up with the real Google+, but who would sign up for an "open Google+" precisely because they would have control over all their own content.

Of course, even if Google+ had been launched as a distributed platform, users would still have the option of signing up for an account hosted on Google's servers, and indeed that would probably be the default choice for most people. (This answers the objection, raised by "0racle", "Havenwar", and others, that it would be "too complicated" for users to sign up for such a service. Certainly most users would not be expected to host and maintain their own nodes in the distributed system. Most of them would just sign up for an account with the largest node, like Google+.)

So that answers the question of how to get people to try it out. The continued relative obscurity of the Diaspora Project — the largest existing open social networking system — does not mean that the idea itself doesn't have merit, or that users wouldn't sign up for such a system if it were launched and promoted by a big company. The second challenge would be to get people to stay, something that users apparently did not do after trying out Google+.

Which brings us to the next set of objections, most of which asked: Would the new distributed system really be better than a centralized one? A big enough improvement to get people to keep using it, and to withstand attacks by spammers and other abusers? In this category of objections, there are some that I think can be answered easily, and some that are hard. So, the easy ones first.

A few users ("Havenwar", "tonywestonuk", and others) said that a distributed protocol would be inferior without integrated support for games or payments. But there's no reason a distributed protocol couldn't include support for other games or other types of apps to be built on top of it. An app could be installed to your profile and, using an API supported by the networking protocol, could send data over the Internet to your friend's profile on another server, if they had the same app installed, allowing you to make "moves" in a game you were playing against your friend. And you could specify which, if any, of your data you wanted the app to have access to. Similarly, if a developer wanted to charge money to users for installing an application, they could just give users a link to a third-party payment system like Paypal where the users would pay in order to download or activate the app. (Yes, people could download pirated versions of the app from BitTorrent sites and install them to their own server for free, but that's a problem for anyone selling commercial software.)

Other users (such as "History's Coming To" and one Anonymous Coward) said that the system I've described was essentially the same as the Web or the blogosphere (perhaps focusing on how I described the "news feed" aspect of a distributed system, which would pull in updates from all of your friends, much like Facebook's news feed does today). I disagree for two reasons: (1) it's much easier to sign up for a social networking account than it is to set up your own website or your own blog, so the proportion of high school students who have their own Facebook is much higher than the proportion that ever had their own Web page; and (2) the Web and the blogosphere do not allow for the creation of objects such as "groups" that you can join and send group messages to, or "events" where you can set a date and a time and invite friends and send messages to all of the invitees, or "games" that allow you to connect your profile with those of your friends and exchange data with them in an application-specific manner. These are all features I would hope to see in an open social networking protocol (although I could live without games).

Now for the harder objections. User "Requiem18th" pointed out that in a distributed system, if you chose to share anything only with your friends (who could access it through their profiles on their own servers), then an attacker could steal the data by attacking the least secure of any of your friends' servers. Even worse, if you'd chosen to share data with "friends of friends", then the attacker could get it by attacking the least secure of the servers of all of your friends-of-friends. True, but generally if I've shared something with all of my friends on Facebook (and even more so if I've shared it with all of my friends-of-friends), I consider that data to have been "compromised" in a certain sense already. If I had shared anything that I wanted to keep private, I'd be far more concerned about one of my so-called "friends" intentionally sharing it beyond the intended audience, than about their account being hacked. We know from hacks of people's email accounts that when attackers gain control of someone's account, they generally don't go through looking for private information, they just spam all of that person's friends with some Viagra ads and then move on.

Some users might have only a limited circle of friends on this distributed-social-networking system, and would share only very private information with them, and in that case their privacy concerns would be more serious. But users who were being that cautious, could set extra privacy on their accounts so that non-friends cannot see who is in their friends list. That would make it impossible for an attacker to spider their list of friends and then try to attack the friends with the least secure servers.

What about spam, fake accounts, and unwanted porn showing up in your news feed? A few commenters ("jeffmeden", "Havenwar", and another Anonymous Coward) said that there's a good reason, after all, that Facebook removes some content and terminates some people's accounts. Impersonation is an interesting problem in this context. There would be no technical barrier to stop someone from creating an account pretending to be someone else. If the impostor hosted the account on their own server, then they would get caught if the police got involved (or their upstream provider might cut them off if someone complained). But the impostor could also just try out many different profile hosting companies on the web, and create the impostor account with the hosting company that seemed to be the most lax about responding to abuse reports. If they use an anonymizing service like Tor to create and log in to the fake account, there's no evidence trail leading back to them at all.

Let me first point out, though, that the same is true for email -- I can create a Hotmail or Gmail account claiming to be anyone I want, and write to friends of that person hoping that they won't notice the message coming from a new email address. In fact, it would be easier to get away with this trick in email, because if I want to pretend to be Alice and send a message to Bob, all I have to do is create an account with Alice's first and last name, and send Bob a message hoping he doesn't notice that it's not coming from Alice's usual email address. If I wanted to do the same thing on an open social networking protocol, on the other hand, I would have to create my fake Alice account and then send a message or a request to "Bob". If Bob is already friends with the real Alice, he'll think it strange that he's getting a request from another "Alice" account, or a message from a user identifying as "Alice" but where the message is flagged as not coming from someone already in his friends list. Plus, once you have a friend relationship with the fake Alice, if your friends list is public, other users may notice the new "Alice" account and warn you about them. (With email, by contrast, no one else would ever see that you're in a thread with a fake "Alice" account, and wouldn't have a chance to warn you.)

So for all of these reasons, I would think that impersonation would be a bigger threat in email than it would be in an open social networking protocol. And yet, I never even heard of any of my friends being taken in by someone impersonating one of their acquaintances by email. However much it was ever happening in the world, it certainly wasn't enough for people to propose moving email to a centralized system where everyone used the same server and rogue accounts could be shut down.

What about spam from strangers? (A good deal of the spam would be porn, so I'm considering the "porn" objection to be a subset of this. If you're seeing porn in your feed because you opted in to see it, that's a feature, not a bug!) The mechanism of the "spam" would depend on whether the open protocol would allow non-friends to send you messages. On Facebook, if you send a message to a non-friend, it gets routed not to your Inbox but to a folder labeled "Other", where it's far less likely to be seen. (The Facebook interface and phone app won't notify that user that they have a new message in that case.) The only type of Facebook communication that you can send to a non-friend that Facebook will actually notify them of, is a friend request. Now, if our new open protocol allows for messages from non-friends to be delivered to your "Inbox", then spammers would indeed probably bombard users with spam. On the other hand, if the only communication we allow from non-friends is friend requests, then the spam would come in the form of the friend requests themselves (many guys would probably accept a friend request from a hot girl, even if the social networking protocol dutifully warned them that they had no friends in common). Even if you were smart enough to realize that most "friend requests" from unknown hot women were fake, they could still clog up your friend request queue and make you more likely to miss requests from real users.

The simplest solution would seem to be that if Bob starts getting too many spam requests, he can turn on a feature that requires other users to complete a CAPTCHA before being able to send Bob a friend request. (And users would also have to complete a CAPTCHA to send Bob a message if they weren't already in his friends list.) After enabling the CAPTCHA feature, all of Bob's existing friend relationships would remain in place, but the CAPTCHA barrier would stop spammers from clogging up his inbound friend request queue. With the CAPTCHA barrier in place, we could even allow non-friends to send Bob a message without it being dumped into his "Other" folder.

What if Bob's account gets hacked and his account starts spamming his friends, where the messages would not be stopped by any CAPTCHA barrier because Bob is already friends with all of those users? Much as people's existing Hotmail and Gmail accounts often get hacked, and the perpetrator immediately spams everyone in that person's address book — and that type of spam often gets through spam filters, because it's coming from someone that you've corresponded with, from a server that you generally trust. Of course those spams are annoying, but they haven't gotten to the point of making email unusable. And if a user in this distributed social system has hundreds of thousands of friends or "fans" — so that someone who hacked their account would be able to reach a large audience — then presumably they would be able to afford the security measures to keep their accounts safe. Much in the same way that many websites and blogs get hacked every day, but if you run a blog or a website that reaches millions of people, it behooves you to use tighter security measures than the average webmaster, and most people in that position can afford to do so. Nobody thinks that Web and email are unusable (or should be moved to a centralized system) just because websites and email accounts get hacked.

In sum, I don't think of the objections raised are fatal to the whole concept, although some of the objections made me think of improvements to the original idea (e.g. an API to build games and apps that could communicate over the Internet with other installations of the same app, or the use of CAPTCHAs to stop spam). The real barrier, as I've said all along, is that nobody would join in the first place, unless the project was launched by a company so popular that they could get new users to sign up just by announcing it. So there's not much that I, or anybody else outside of those behemoth companies, can do except to sit back and wait for someone like Google to try it. All we can do is lay out the case for why, if they did, it would change everything. Not to mention, if they made their own servers the largest node for hosting free ad-supported accounts under this open social networking protocol, it would make them a lot of money at the same time.

Dr Herbert West writes "The phrase 'correlation does not imply causation' goes back to 1880 (according to Google Books). However, use of the phrase took off in the 1990s and 2000s, and is becoming a quick way to short-circuit certain kinds of arguments. In the late 19th century, British statistician Karl Pearson introduced a powerful idea in math: that a relationship between two variables could be characterized according to its strength and expressed in numbers. An exciting concept, but it raised a new issue: how to interpret the data in a way that is helpful, rather than misleading. When we mistake correlation for causation, we find a cause that isn't there, which is a problem. However, as science grows more powerful and government more technocratic, the stakes of correlation — of counterfeit relationships and bogus findings — grow larger."

Hugh Pickens writes "Will Oremus reports that Fox News showed a grisly spectacle Friday afternoon during a live car chase when the suspect got out of his car, stumbled down a hillside, pulled a gun, and shot himself in the head. As the scene unfolded, Fox News anchor Shepard Smith grew increasingly apprehensive, then yelled 'get off it, get off it!,' belatedly urging the show's producers to stop the live feed as it became obvious the man was going to do something rash. Fox News cut awkwardly to a commercial just after showing his death and after Fox aired the on-air suicide, Smith apologized to viewers, saying, 'We really messed up.' However BuzzFeed immediately posted the footage on YouTube, where it garnered more than 1,000 'likes' in under an hour, sparking immediate blowback. 'Who's worse? @FoxNews for airing the suicide, or @BuzzFeed for re-posting the video just in case you missed it the first time?' posted the Columbia Journalism Review. Gawker's Hamilton Nolan called his site's decision to post the video 'ethical,' because 'it is news' but research suggests that graphic depictions of suicide in the media can spur copycat suicides, especially among young people, and the World Health Organization's guidelines warn against sensationalizing it. Virtually everyone who has studied it agrees that, at a minimum, suicides should be covered with a modicum of sensitivity and context (PDF). 'Of course it's news that Fox News accidentally aired the video. And you can make a good case that Fox was inviting this type of debacle with its habit of airing live car-chase feeds. But Fox couldn't have known that it was about to air a suicide. BuzzFeed, by contrast, knew exactly what it was doing,' writes Oremus. 'That might be good business for BuzzFeed, but it's hard to see the benefit for anyone else.'"

gbrumfiel writes "The Curiosity rover will soon start rolling, and when it does, it will be running on gas from a Russian weapons plant. Slate has the story of how the plutonium-238 that powers the rover came from Mayak, a Soviet-era bomb factory. Mayak made the fuel through reprocessing, a chemical process used to make nuclear warheads that also polluted the surrounding environment. After the cold war ended, the Russians sold the spare Pu-238 to NASA, which put some of it into Curiosity. Now, the Russian supply is running low and NASA hopes to restart Pu-238 production on U.S. soil (They're planning on making less of a mess this time)." One interesting way of dealing with nuclear waste: reprocess fuel a few times, extracting Pu-238 and friends (those pesky "have to keep waste sealed forever to prevent hyper-squirrels in the year 3,001,000 from being irradiated" elements) and launching an army of deep space probes. But then there's the waste stream from reprocessing...

Hugh Pickens writes "Louis Uchitelle writes that in Aisle 34 of Home Depot is precut vinyl flooring, the glue already in place. In Aisle 26 are prefab windows, and if you don't want to be your own handyman, head to Aisle 23 or Aisle 35, where a help desk will arrange for an installer, as mastering tools and working with one's hands recede as American cultural values. 'At a time when the American factory seems to be a shrinking presence, and when good manufacturing jobs have vanished, perhaps never to return, there is something deeply troubling about this dilution of American craftsmanship,' writes Uchitelle. 'Craftsmanship is, if not a birthright, then a vital ingredient of the American self-image as a can-do, inventive, we-can-make-anything people.' Mass layoffs and plant closings have drawn plenty of headlines and public debate over the years, and they still occasionally do. But the damage to skill and craftsmanship — what's needed to build a complex airliner or a tractor, or for a worker to move up from assembler to machinist to supervisor — has gone largely unnoticed. 'In an earlier generation, we lost our connection to the land, and now we are losing our connection to the machinery we depend on,' says Michael Hout. 'People who work with their hands are doing things today that we call service jobs, in restaurants and laundries, or in medical technology and the like.' The damage to American craftsmanship seems to parallel the precipitous slide in manufacturing employment. And manufacturing's shrinking presence helps explain the decline in craftsmanship, if only because many of the nation's assembly line workers were skilled in craft work. 'Young people grow up without developing the skills to fix things around the house,' says Richard T. Curtin. 'They know about computers, of course, but they don't know how to build them.'"

jetcityorange writes "When asked repeatedly a Microsoft spokesperson refused to confirm or deny that Skype conversations [could be monitored]. Microsoft was granted a patent a month after purchasing Skype that covers 'legal intercept' technology designed to be used with VOIP services. Is it time to consider more secure alternatives like Jitsi like Tor's Jacob Appelbaum suggests?"

theodp writes "The White House has unveiled a proposal to create a national elite teachers corps to reward the nation's best educators in science, technology, engineering and math. In the first year, as many as 2,500 teachers in those subjects would get $20,000 stipends on top of their base salaries in exchange for a multiyear commitment to the STEM Master Teacher Corps. The Obama administration plans to expand the corps to 10,000 nationwide over the next four years, with the ultimate goal that the elite group of teachers will pass their knowledge and skills on to their colleagues to help bolster the quality of teaching nationwide."

Maximum Prophet writes "Here's a thought: at the start, only rich people will be able to pay for a completely autonomous car. Auto-autos will only go the speed limit. Rich people don't like to go slow. Ergo, there won't be any market for automatic cars. Wait, I hear you say. The rich guy will just modify his car to go faster. But, if you go over the limit it's a fine, but to mess with the safety systems of even your own vehicle is probably a felony. Much more likely: the rich will get new laws passed to make it legal for automatic cars to go much, much faster than human-driven vehicles."

Maximum Prophet writes "Here's a thought: at the start, only rich people will be able to pay for a completely autonomous car. Auto-autos will only go the speed limit. Rich people don't like to go slow. Ergo, there won't be any market for automatic cars. Wait, I hear you say. The rich guy will just modify his car to go faster. But, if you go over the limit it's a fine, but to mess with the safety systems of even your own vehicle is probably a felony. Much more likely: the rich will get new laws passed to make it legal for automatic cars to go much, much faster than human-driven vehicles."

Maximum Prophet writes "A while ago, Amazon caved on paying individual states sales taxes. Now we know why. Amazon is setting up same-day delivery warehouses everywhere. They will put most normal retailers out of business." If that's a bet, I'll take it.

theodp writes "Remember the Pre-Cogs in Minority Report? Slate's Will Oremus does, and wonders if Google could similarly help the police apprehend criminals based on foreknowledge collected from searches. Oremus writes: 'At around 3:45 a.m. on March 24, someone in Fort Lauderdale, Fla., used a mobile phone to Google "chemicals to passout a person." Then the person searched Ask.com for "making people faint." Then Google again, for "ways to kill people in their sleep," "how to suffocate someone," and "how to poison someone." The phone belonged to 23-year-old Nicole Okrzesik. Later that morning, police allege, she and her boyfriend strangled 19-year-old Juliana Mensch as she slept on the floor of their apartment.' In theory, Oremus muses, Google or Ask.com could have flagged Okrzesik's search queries as suspicious and dispatched cops to the scene before Mensch's assailants had the chance to do her in." I bet you're already thinking of just a few reasons why this might not such a good idea.

An anonymous reader writes "MAKE Magazine founder Dale Dougherty has an article in Slate about how educators are missing the punchline when it comes to getting kids interested in learning. He describes a recent visit he made to a middle school: 'The science lab was empty, as were the library and the playground. It was not a school holiday: It was a state-mandated STAR testing day. The school was in an academic lockdown. This is what the American public school looks like in 2012, driven by obsessive adherence to standardized testing. The fate of children, their schools, and their teachers are based on these school test scores.' Dougherty's preference would be to more tightly integrate basic engineering projects into the science curriculum. 'I see the power of engaging kids in science and technology through the practices of making and hands-on experiences, through tinkering and taking things apart. Schools seem to have forgotten that students learn best when they are engaged; in fact, the biggest problem in schools is boredom. Students sit passively, expected to absorb all the content that is thrown at them without much context. The context that's missing is the real world."

cold fjord writes that Assistant Professor and lecturer Dave Conz has an interesting article at Slate, from which: "I believe beer is the perfect lens through which to examine innovation, which is why I teach a senior capstone course at Arizona State University called the Cultural and Chemical History of Beer. ... Home brewing is part of a broad spectrum of DIY activities including amateur astronomy, backyard biodiesel brewing, experimental architecture, open-source 3-D printing, even urban farming. ... Many of these pastimes can lead to new ideas, processes, and apparatus that might not otherwise exist. Depending on your hobby and your town, these activities can be officially encouraged, discouraged, unregulated, or illegal. For example, it's illegal to make biodiesel fuel at home in the city of Phoenix ... but not regulated in the bordering towns of Scottsdale, Chandler, or Tempe."

cold fjord writes that Assistant Professor and lecturer Dave Conz has an interesting article at Slate, from which: "I believe beer is the perfect lens through which to examine innovation, which is why I teach a senior capstone course at Arizona State University called the Cultural and Chemical History of Beer. ... Home brewing is part of a broad spectrum of DIY activities including amateur astronomy, backyard biodiesel brewing, experimental architecture, open-source 3-D printing, even urban farming. ... Many of these pastimes can lead to new ideas, processes, and apparatus that might not otherwise exist. Depending on your hobby and your town, these activities can be officially encouraged, discouraged, unregulated, or illegal. For example, it's illegal to make biodiesel fuel at home in the city of Phoenix ... but not regulated in the bordering towns of Scottsdale, Chandler, or Tempe."

theodp writes "After a 17-month wait, 20-year-old Dharun Ravi went on trial Friday for using a remote webcam to spy on an encounter between his roommate and another man in their Rutgers dorm room. The roommate, Tyler Clementi, killed himself days later, jumping off the George Washington Bridge and igniting a national conversation on cyberbullying and gay teen suicide. Ravi is charged with multiple counts of bias intimidation as a hate crime, invasion of privacy and hindering apprehension; he faces up to 10 years in prison and deportation. Defense lawyers on Friday argued that Ravi's actions were the mark of an ignorant teenager, not a hateful homophobe. 'He may be stupid at times,' said Ravi's lawyer. 'He's an 18-year-old boy, but he's certainly not a criminal.' The New Yorker recently offered an in-depth look at the case and the questions it raises. BTW, this might be a good time for Microsoft to retire that Hallway commercial ('Jason gets stranded in the hallway when his roommate is 'tutoring' lady friends in their dorm room. Luckily, with Windows 7, his laptop can now work like an HD DVR. So Jason can entertain himself while waiting. And waiting. Aaand waiting some more.')."

Frequent Slashdot contributor Bennett Haselton writes "Tunisia's high court will decide on Wednesday whether to allow censoring of websites containing pornography or 'calls to violence.' It's disappointing that censorship continues in post-revolutionary Tunisia, but it's enough of an improvement over the old regime, that anti-censorship cyber-activism efforts would probably best be spent on helping other countries." Read on for Bennett's analysis.

In Tunisia, where dictator Zine El Abidine Ben Ali was ousted one year ago amid hopes for a new era of freedom, the high court will decide on Wednesday whether to censor foreign pornographic websites in accordance with local law. Facebook pages that "call for violence" may also be blocked. Conveniently, all the machinery for censoring the Internet in Tunisia is already in place, having been installed under Ben Ali's dictatorship for the purposes of censoring and spying on Tunisian citizens (and, for a while, phishing their Facebook passwords). The irony recalls the situation in Iraq in 2009, when the government announced plans to start censoring foreign websites -- to which Iraqi citizens complained that they thought censorship would end with the fall of Saddam's regime. Actually, apart from the three outlier countries of Turkey, Israel and Lebanon, pornography remains illegal in every Middle Eastern country (and some conservative African nations), including the recently "liberated" ones including Egypt, Iraq and Tunisia. (Although, Iraq's street market in pornography thrives as long as the police have better things to do.)

I'm against such censorship in principle -- I think that even the right to publish and access pornography counts as a fundamental human right. But I think we have to take what progress we can get, and censoring just pornography and calls to violence, is a big improvement over censoring pornography and dissident political speech, which is the norm in most non-"liberated" Middle Eastern countries like Syria, Iran, and Saudi Arabia. Syria blocks foreign opposition sites like All4Syria.info, Iran blocks Facebook and YouTube to keep dissidents from posting or viewing anti-government material, and Saudi Arabia blocks Reporters Without Borders and filters the Amnesty International report on human rights in Saudi Arabia (but not the rest of the Amnesty International site!).

Saudi Arabia blocking the Amnesty International report on human rights in their country (while leaving the rest of the site unblocked), in particular, seems like the kind of thing that a government would do more as a "fuck you" to human rights activists, than a means to achieve a practical goal. For one thing, most of the facts in the human rights report about Saudi Arabia -- about sex discrimination and lack of political and religious freedom -- are already well known to the people who live there. And secondly, what percent of the citizens of a country would ever read the Amnesty International report on human rights in that country, even if it were not blocked? How many Americans even know that Amnesty puts out an annual report about human rights violations in the United States? So it seems more like a symbolic move to remind everyone who's in charge. For all the disappointment in the lack of progress for free speech in post-"liberation" countries, the non-"liberated" ones are indeed worse.

As for the Tunisian proposal to censor "calls to violence", I wouldn't always be against that, even in principle. In most countries, direct incitements to violence can be considered illegal (it depends on what you say and, of course, on what judge you get). In a developing country rife with ethnic tensions, even greater restrictions on calls to violence could be justified. When you finally watched Hotel Rwanda , weren't you hoping someone would bust in on that radio DJ telling everyone to kill Tutsis in the middle of a civil war, and blow him to hell? The biggest problem with a rule against "calls to violence" is that the government could stretch the definition to silence political speech. But it's possible to keep that kind of abuse in check, as has mostly been achieved in the U.S. For that, what you need is an independent judiciary, not an abolishment of all rules against calls to violence.

So the free-speech situation in "liberated" Tunisia may be nothing to write home about, but it sounds much better than it used to be, when writing home to complain about it could get you arrested. A Wall Street Journal article from July 2011 describes how, under Ben Ali's dictatorship, Tunisian cyber-activist Slim Amamou had been imprisoned and abused by the police for calling for peaceful demonstrations. Post-revolution, he was freed and asked to join the interim government, where the strictest restriction placed on him was to "stop sending Twitter messages during internal government meetings to his 25,000 followers". They may not have their porn, but that's still progress.

Of course, if someone in Tunisia wants to circumvent the government filters (using tools like proxy sites, VPNs, Tor, UltraSurf, Psiphon, etc.) and get to a porn site, more power to them. I just wouldn't make it a priority to set aside resources to help them get it. Not while there are Iranians who need help getting around the latest restrictions blocking them from Facebook and Gmail.

Two caveats. First, if someone wants to sell circumvention services to Tunisians who just want to get around the porn blocker, that doesn't count as "setting aside resources", so that's a perfectly noble endeavor. In fact, given the economies of scale in the circumvention business, selling to Tunisians could help to bring the price down for other users, including users in countries like Saudi Arabia where the government does engage in political filtering, and where circumvention services could be a tool for social change. Second, providing circumvention services (free or paid) to Tunisians, does probably make it less likely that the new government would revert to political censorship, knowing that many of its citizens have the tools to beat it, even if those tools are only currently used to access porn sites. So to that extent, setting aside resources to provide circumvention services in Tunisia might be a worthwhile cause.

Still, I think it's a lot less important than using circumvention tools to fight political censorship in truly autocratic countries like Iran. For the next generation of proxy servers that I'm rolling out, I'm working on setting aside some of them just for Iranian IP addresses. Even if Iranians just use them to get on Facebook, that's still contributes more to advancing the cause of social democracy, than Tunisians using them to get on Playboy.

parallel_prankster writes "A recent Congressional Research Service report, titled U.S. Unmanned Aerial Systems, looks at the more-prominent role being played by drones. In 2005, drones made up just 5 percent of the military's aircraft. Today one in three American military aircraft is a drone. The upsides of drones are that they are cheaper and safer — the military spent 92% of the aircraft procurement money on manned aircraft. The downside — they're bandwidth hogs: a single Global Hawk drone requires 500 megabytes per second worth of bandwidth, the report finds, which is 500 percent of the total bandwidth of the entire U.S. military used during the 1991 Gulf War."

Maximum Prophet points out a series of articles in Slate about the role of mice and rats in the fight against cancer. The first article discusses the problem of using the same type of animal for many tests; the reactions may be consistent, but they can also be different from the reactions a human has to the same treatment. "The inbred, factory-farmed rodents in use today—raised by the millions in germ-free barrier rooms, overfed and understimulated and in some cases pumped through with antibiotics—may be placing unseen constraints on what we know and learn." The second article focuses on one particular type of mouse, bred specifically for consistency and for its suitability to labwork, which has come to dominate biological testing. The final piece examines what researchers are trying to learn from the naked mole rat, a species that doesn't seem to get cancer on its own, and is resistant to attempts to induce cancer. "Buffenstein and her students tried one of these shortcuts. They placed some mole rats in a gamma chamber and blasted their pale, pink bodies with ionizing rays. The animals were unimpressed."

Maximum Prophet points out a series of articles in Slate about the role of mice and rats in the fight against cancer. The first article discusses the problem of using the same type of animal for many tests; the reactions may be consistent, but they can also be different from the reactions a human has to the same treatment. "The inbred, factory-farmed rodents in use today—raised by the millions in germ-free barrier rooms, overfed and understimulated and in some cases pumped through with antibiotics—may be placing unseen constraints on what we know and learn." The second article focuses on one particular type of mouse, bred specifically for consistency and for its suitability to labwork, which has come to dominate biological testing. The final piece examines what researchers are trying to learn from the naked mole rat, a species that doesn't seem to get cancer on its own, and is resistant to attempts to induce cancer. "Buffenstein and her students tried one of these shortcuts. They placed some mole rats in a gamma chamber and blasted their pale, pink bodies with ionizing rays. The animals were unimpressed."

Maximum Prophet points out a series of articles in Slate about the role of mice and rats in the fight against cancer. The first article discusses the problem of using the same type of animal for many tests; the reactions may be consistent, but they can also be different from the reactions a human has to the same treatment. "The inbred, factory-farmed rodents in use today—raised by the millions in germ-free barrier rooms, overfed and understimulated and in some cases pumped through with antibiotics—may be placing unseen constraints on what we know and learn." The second article focuses on one particular type of mouse, bred specifically for consistency and for its suitability to labwork, which has come to dominate biological testing. The final piece examines what researchers are trying to learn from the naked mole rat, a species that doesn't seem to get cancer on its own, and is resistant to attempts to induce cancer. "Buffenstein and her students tried one of these shortcuts. They placed some mole rats in a gamma chamber and blasted their pale, pink bodies with ionizing rays. The animals were unimpressed."

Slate has reprinted the piece that Ron Rosenbaum wrote for Esquire in 1971, explaining to the world that there was an underground movement of people hacking the phone system. (Rosenbaum is now a columnist for Slate.) According to the article's new introduction and followup piece by Rosenbaum reflecting on its impact — and to the New York Times obituary for Steve Jobs — this article inspired Jobs and Wozniak to start building blue boxes themselves, an effort that made them several thousand dollars.

Slate has reprinted the piece that Ron Rosenbaum wrote for Esquire in 1971, explaining to the world that there was an underground movement of people hacking the phone system. (Rosenbaum is now a columnist for Slate.) According to the article's new introduction and followup piece by Rosenbaum reflecting on its impact — and to the New York Times obituary for Steve Jobs — this article inspired Jobs and Wozniak to start building blue boxes themselves, an effort that made them several thousand dollars.

Geoffrey.landis writes "In an essay discussing the space program, author Neal Stephenson suggests that the decline of the space program 'might be symptomatic of a general failure of our society to get big things done.' He suggests that we may be suffering from innovation starvation: 'Innovation can't happen without accepting the risk that it might fail. The vast and radical innovations of the mid-20th century took place in a world that, in retrospect, looks insanely dangerous and unstable.'" Though the context is different, this reminds me of economist Tyler Cowen's premise that the U.S. has for decades been in a Great Stagnation.

theodp writes "Hal in 2001: 'I'm sorry, Dave. I'm afraid I can't do that [open the pod bay doors].' Kinect in 2011: 'I'm sorry, Dave Jr. I'm afraid I can't do that [tune in to the Spice Channel].' A Microsoft patent filing made public this week proposes to restrict access to TV, movies and video games by using a 3D depth camera to estimate viewers' ages based upon the dimensions and proportions of a person's body, such as head width to shoulder width, and torso length to overall height. For adults with short arms or other seemingly childlike proportions, settings can be overridden by someone with an administrator password."

An anonymous reader writes "For years, robots have been replacing workers in factories as technology has come to grips with high-volume, unskilled labor. An article in Slate makes the case that the robot workforce is poised to move into fields that require significantly more training and education. From the article: 'In the next decade, we'll see machines barge into areas of the economy that we'd never suspected possible — they'll be diagnosing your diseases, dispensing your medicine, handling your lawsuits, making fundamental scientific discoveries, and even writing stories just like this one. Economic theory holds that as these industries are revolutionized by technology, prices for their services will decline, and society as a whole will benefit. As I conducted my research, I found this argument convincing — robotic lawyers, for instance, will bring cheap legal services to the masses who can't afford lawyers today. But there's a dark side, too: Imagine you've spent three years in law school, two more years clerking, and the last decade trying to make partner — and now here comes a machine that can do much of your $400-per-hour job faster, and for a fraction of the cost. What do you do now?'"

Jeremy Erwin writes "A columnist for Slate asks why there aren't any civilians in today's military shooting games. Quoting: 'Mostly, they don't want to face the consequences of players' bad behavior. In an interview with the website Rock Paper Shotgun, Battlefield 3's executive producer Patrick Bach explained that he doesn't "want to see videos on the Internet where people shoot civilians. That's something I will sanitize by removing that feature from the game." Bach believes that video games are serious business but that players' irreverence is holding back the form. "If you put the player in front of a choice where they can do good things or bad things, they will do bad things, go [to the] dark side because people think it's cool to be naughty, they won't be caught," he said.'" (Note that there are civilians in Battlefield 3, you just can't kill them, accidentally or otherwise. Despite this, the author's point stands: "By removing civilians from the picture, developers like Bach are trying to reap the benefits of a real-life setting without grappling with the reality of collateral damage.")

theodp writes "In purchasing Motorola Mobility, Slate's Farhad Manjoo reports that Google will also come into possession of one the nation's biggest suppliers of set-top boxes. So, can Google work some of its do-no-evil magic on the loathsome cable box? Don't bet on it, says Manjoo. For one thing, there's no evidence that Google would be very good at remaking the set-top box (Google TV, anyone?). But even if Google managed to dramatically improve set-top boxes, it's doubtful that cable and satellite companies would buy in. First, they'd lose all those ridiculously lucrative cable-box rental fees. More importantly, they'd have to give up control of the main entertainment device in most homes, and with it the opportunity to slow or stymie competing sources for entertainment. After the merger, notes Manjoo, Google could get several billion dollars by selling off Motorola Mobility's set-top-box division — a much surer payday than taking on Big Cable."

Hugh Pickens writes "Brian Palmer writes that although none of the major manufacturers has released data on their energy consumption and how much greenhouse gas making a bicycle requires, Shreya Dave, a graduate student at MIT, recently estimated that manufacturing an average bicycle results in the emission of approximately 530 pounds of greenhouse gases. Therefore, given a 'typical U.S. diet,' you would have to ride your bike instead of driving for around 400 miles to cover the bike's initial carbon footprint. However, calculating the total environmental impact of a mode of transit involves more than just the easy-to-measure metrics like mileage per gallon. Using a life-cycle assessment, Dave concluded that an ordinary sedan's carbon footprint is more than 10 times greater than a conventional bicycle's (PDF) on a mile-for-mile basis, assuming each survives 15 years and you ride the bike 2,000 miles per year. What about other ways to get to work? According to Dave's life-cycle analysis, the only vehicle that comes close to a bicycle is the peak-hour bus — and it's not really that close. A fully loaded bus is responsible for 2.6 times the carbon emissions total of a bicycle per passenger mile while off-peak buses account for more than 20 times as many greenhouse gases as a bicycle. What about the carbon footprint of walking? 'Walking is not zero emission because we need food energy to move ourselves from place to place,' says environmentalist Chris Goodall. 'Food production creates carbon emissions.'"

theodp writes "'Booting up was a bear,' recalls Slate's Farhad Manjoo, 'something to be avoided at all costs.' But now, he adds, 'It's time to rejoice, because all that's in the past. Computers these days can go from completely off to working within 30 seconds, and in some cases much faster. Apple's MacBook Air loads up in 16 seconds, and machines based on Google's cloud-based Chrome OS boast boot times of under 10 seconds. Even Windows computers are fast — with the right set-up, your Windows 7 laptop can load just as quickly as a MacBook.' Perhaps at home, but how's that working out for you at work? Have reports of the death of long boot times been greatly exaggerated?"