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User: JoshuaZ

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  1. Re:Simple Explanation on Gamma-ray Bursts May Explain Fermi's Paradox · · Score: 2

    The problem isn't simple visits. The problem is twofold: no signs of communication and no signs of substantial change to the surrounding environment. We don't see any Dyson spheres or ringworlds or stellar lifting or any attempts at that all of which would be noticeable. If there are civilizations out there they are ignoring massive amounts of resources. Note also that in the scale of a few billion years travel and colonization isn't that big a deal: galaxies are only around 100,000 light years across so even going at 1% of the speed of light and hopping between stars should lead to galactic colonization within a a few hundred million years at the most.

  2. Re:This is cool but scary because of Great Filter. on Kepler Discovers Solar System's Ancient 'Twin' · · Score: 1

    Possible, but seems unlikely. Every species has that level of hysteria? And what about the species born early enough in the universe's history that they didn't have much reason to worry about the Filter?

  3. This is cool but scary because of Great Filter. on Kepler Discovers Solar System's Ancient 'Twin' · · Score: 2

    While this is really neat, it is yet more of the accumulating evidence that there are no substantial barriers to intelligent life arising or even arising in the early universe. This suggests that something is wiping out civilizations, possibly something the civilizations themselves all do. This problem is known as the Great Filter http://en.wikipedia.org/wiki/Great_Filter (Strictly speaking the Filter is whatever makes massive, interstellar, civilizations apparently rare, but it looks like most of the Filter really is at or beyond our rough tech level.) The Great Filter could be nuclear war, or epidemics, or biological warfare, or bad nanotech, or possibly something we haven't even thought of that comes completely out of left field. But the evidence for it is growing. This is scary.

  4. Re:Yes. on Should Disney Require Its Employees To Be Vaccinated? · · Score: 1

    That's a question of the level of the burden to establish guilt: the point is that a starting presumption of innocence is a court-specific thing.

  5. Link to the study on Americans Support Mandatory Labeling of Food That Contains DNA · · Score: 5, Interesting
    The original study can be found at http://agecon.okstate.edu/facu... : Another fun bit in the study:

    Another fun excerpt: "Secondly, participants were asked “Did you read any books about food and agriculture in the past year?” Participants were asked to select “Yes”, “No”, or “I don’t know”. Just over 16% of participants stated that they had read a book related to food and agriculture in the past year. About 81% answered “No”, and 3% answered “I don’t know”. Those who answered “Yes” were asked: “What is the title of the most recent book you read about food and agriculture?” The vast majority of responses were of the form “I don’t remember” or “cannot recall”. Fast Food Nation, Food Inc., and Omnivore’s Dilemma were each mentioned about three times. The Farmer’s Almanac and Skinny Bitch were mentioned twice. One respondent mentioned the bible."

    This appears to follow the general pattern that people will lie to interviewers to seem more smart, educated, or intellectual than they are. They don't mention in the study a correlation between those who said yes to reading a book and then couldn't "remember" it when pressed and those who wanted to ban food containing DNA, but I'd be willing put money on their being a correlation.

  6. Re:Yes. on Should Disney Require Its Employees To Be Vaccinated? · · Score: 4, Insightful

    A drug test isn't an assumption of guilt in a court of law. The entire guilty until proven innocent is for criminal and civil trials, not for employment. Mandatory drug tests are pragmatically stupid for many reasons in many industries (they are much less likely to catch the hard drugs like cocaine which go out of the system fast than marijuana which lingers, they cost a lot of money), but in the case of Disney where the employees are working on and maintaining rides with many passengers and where people could easily be killed if something goes wrong, drug tests aren't as unreasonable. In general, the real silliness of drug tests is when they are used by things like fast food restaurants or worse when they are used as a condition of welfare (where the evidence is that they cost far far more than they save the state).

  7. Re:"Forget about the risk that machines pose to us on An Open Letter To Everyone Tricked Into Fearing AI · · Score: 1

    Because why just use soil when there's also all that other easily available material also? Note that even if the AI does use soil, using up all the world's soil would still be pretty unpleasant for humans. The central problem is that the AI has no reason to stop at any amount of resources so why not use everything available?

  8. Re:"Forget about the risk that machines pose to us on An Open Letter To Everyone Tricked Into Fearing AI · · Score: 2

    We are actively trying to make fully sentient AI. Moreover, we have good reason to think it can be done: there's an example of a sentient thing already: humans. And the real issue isn't that it wants to kill us, but that it can use the matter we're made up of to do something else with. It doesn't hate you: you just happen to be useful atoms.

  9. Re:Really? On Slashdot? on Gunmen Kill 12, Wound 7 At French Magazine HQ · · Score: 3, Informative

    Issues involving free speech and threats to free speech is both a nerd issue and "news that matters." It also is a tech issue because improvements in communication have allowed people to get worked up all over the globe over things that are happening farther away that they wouldn't know about at all otherwise.

  10. Re:Why are we still fighting with this? on 10 Years In, Mars Rover Opportunity Suffers From Flash Memory Degradation · · Score: 2, Informative

    These rovers were designed to last 90 days. The most broad plans extended to about a year if they were lucky. So no plans were made for every thing that could go wrong 5 to 10 years down the road.

  11. Re:Considering how few boys graduate at ALL on School Defied Google and US Government, Let Boys Program White House Xmas Trees · · Score: 1, Informative

    If you genuinely think this then you haven't been paying attention. The primary point of feminism has been historically to put men and women on equal footing and give them equal opportunities. The fields in question, computer science, are actually a case in point: the percentage of females in computer related fields actually used to be higher. It actually dropped with the rise of the personal computer which was advertised as a thing for young boys. See http://www.npr.org/blogs/money/2014/10/21/357629765/when-women-stopped-coding and it still hasn't gotten to the point it was in the 1980s. And when skilled people, of any gender, aren't going to the fields where their skills can be most useful, we all suffer.

    Yes, there are some radical feminists who have some very bad ideas or end goals, but that's going to occur in any political movement. Paying attention to outliers is not helpful. If someone had said in 1970 that the movement for racial equality's primary objective was to sabotage white people that would be the exact same sort of thing, and it would have the exact same things wrong with it.

  12. The idea is interesting but I'm not convinced. on 5,200 Days Aboard ISS, and the Surprising Reason the Mission Is Still Worthwhile · · Score: 1

    The idea here is interesting but I'm not convinced for three reasons: first, the fact that massive staffs are used to plan out their days isn't necessary great evidence that it really is difficult: that could be administrative bloat. Second, for much of a trip to Mars days will end up looking very much like each other until one is actually on planet. They won't be doing much in the way of experiments on the way to Mars. Third of all, a 20-30 minute delay will not really create that many problems with getting plans from Earth unless one is in some sort of emergency situation.

  13. Re:Difficult to reconcile with SN 1987A on New Paper Claims Neutrino Is Likely a Faster-Than-Light Particle · · Score: 1

    Reading it more carefully, it looks like you are correct. Thanks for pointing this out. So SN 1987A data is not by itself a good reason to doubt this.

  14. Re:Dark Matter? on New Paper Claims Neutrino Is Likely a Faster-Than-Light Particle · · Score: 1

    Possible, but there's no reason to particularly locate that hypothesis. In this conext, the specific particle which may be a tachyon is the electron neutrino. We already know that standard estimates of neutrino mass make it extremely unlikely that the standard three types of neutrinos are anywhere near enough mass to be more than about 5% of dark matter, and that's likely a vast overestimate. As to there being some other particles that are dark matter that happen to be tachyons- possible, but why even identify the hypothesis as relevant? The primary evidence for dark matter is gravitational: whether particles are tachyons or tardyons we expect their interaction with gravity to behave about the same.

  15. Difficult to reconcile with SN 1987A on New Paper Claims Neutrino Is Likely a Faster-Than-Light Particle · · Score: 4, Insightful
    The primary difficulty here is going to be the same data that was really tought to reconcile with in the OPERA experiment, namely the data from SN 1987A.

    In that supernova (the first observed in 1987 hence the name), the supernova was close enough that we were actually able to detect the neutrinos from it. The neutrinos arrived about three hours before the light from the supernova. But that's not evidence for faster than light neutrinos, since one actually expects this to happen. In the standard way of viewing things, the neutrinos move very very close to the speed of light, but during a core-collapse supernova like SN 1987A, the neutrinos are produced in the core at the beginning of the process. They then flee the star without interacting with the matter, whereas the light produced in the core is slowed down by all the matter in the way, so the neutrinos get a few hours head start.

    The problem for FTL neutrinos is that if the neutrions were even a tiny bit faster than the speed of light they should have arrived much much earlier. This is strong evidence against FTL neutrinos. In the paper in question, he mentions SN 1987A in the context of testing his hypothesis in an alternate way using a supernova and the exact distribution of the neutrinos from one but doesn't discuss anywhere I can see the more basic issue of the neutrinos arriving at close to the same time as the light.

  16. "We didn't do it. Shutup or we'll do it again." on US Seeks China's Help Against North Korean Cyberattacks · · Score: 2, Insightful
    North Korea's response seems to be "We didn't do it. Shutup or we'll do it again." See for example the quotes listed at http://www.cnn.com/2014/12/21/world/asia/north-korea-us-sony/index.html?hpt=hp_c2. After saying that they didn't do it, North Korea then says that:

    The DPRK has already launched the toughest counteraction. Nothing is more serious miscalculation than guessing that just a single movie production company is the target of this counteraction. Our target is all the citadels of the U.S. imperialists who earned the bitterest grudge of all Koreans.

    They then go on to say that their soldiers along with the hackers in question are sharpening their bayonets. North Korea seems to want to have it both ways: claiming that they didn't do it, but wanting everyone to take their threats seriously like they did. At this point, there really shouldn't be substantial doubt that North Korea is responsible. The only question is what the proper response is.

  17. Re:Should Allah be translated to God? on Apparent Islamic Terrorism Strikes Sydney · · Score: 1

    That's almost the exact opposite argument than you made in your post. You really don't seem to have a coherent point here. Apparently Christians who speak Arabic are perfectly ok using the same word. If they thought that the words had different meanings then they'd try to use different words in Arabic. The fact that they don't shows that your entire claim doesn't work. You seem to be confused about whether "Allah" is a proper noun or a generic. Like the word "God" in English it is both.

  18. Re:Should Allah be translated to God? on Apparent Islamic Terrorism Strikes Sydney · · Score: 1

    That's true in general for speaking in common contexts among Orthodox Jews. But even then, Orthodox people will simply sometimes say "God" in English or whatever the equivalent is in that language. And that's aside from the many less religious Jews who don't strongly have that taboo.

  19. Re:Should Allah be translated to God? on Apparent Islamic Terrorism Strikes Sydney · · Score: 1

    Does it impact your opinion at all to learn that Jews and Christians when speaking Arabic use the word "Allah" to talk about their deity?

  20. Re:Muslims? on Apparent Islamic Terrorism Strikes Sydney · · Score: 1

    I don't know what "hate site" means in general, but that's at minimum a source that has very much already decided on their bottom line http://lesswrong.com/lw/js/the_bottom_line/, which means one shoudl already take it pretty skeptically. But that list isn't very helpful for a simple reason that it just shows that there are a lot of Islamic terrorist events which isn't terribly helpful: we already know that. The question being asked is how common are they compared to terrorist events motivated by other ideologies or religious traditions.

  21. Re:Muslims? on Apparent Islamic Terrorism Strikes Sydney · · Score: 5, Informative

    Getting data on these issues is complicated. If one restricts to the US, then about 10% of all terrorist attacks are Islamic. See http://www.washingtonsblog.com/2013/05/muslims-only-carried-out-2-5-percent-of-terrorist-attacks-on-u-s-soil-between-1970-and-2012.html. But not only is this restricted to the US, it uses a very broad notion of what counts as terrorism. If one weighs in the US by total deaths, then Islamic terrorism swamps everything else primarily due to 9/11. Worldwide, about 70% of all terrorist attacks are by Sunni Muslims but this varies from year to year. See for example the 2011 report NCTC report http://fas.org/irp/threat/nctc2011.pdf. Again, definitional issues can move this number up or down by a lot.

  22. One should be careful on the logic here on Romanian Officials Say Russia Finances European Fracking Protests · · Score: 4, Insightful

    Keep in mind that just because Russia/Putin doesn't want fracking, it isn't a reason by itself to think tha fracking is a good thing.

  23. I prefer this rewrite on "Barbie: I Can Be a Computer Engineer" Pulled From Amazon · · Score: 3, Interesting

    http://www.themarysue.com/barb... is much better done. If only that had been the actual book!

  24. Neat interview on First Man To Walk In Space Reveals How Mission Nearly Ended In Disaster · · Score: 4, Insightful

    The interview is neat, but this isn't anything being "revealed"- all these details were already known. You'll see them mentioned in many books discussing early space flight. They are I think mentioned for example in Buzz Aldrin's "Men from Earth".

  25. Most disturbing bit on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 2

    In her 11 August response, Barr questioned whether the special agent who conducted the investigation “can be an impartial evaluator of academic scientists, or anyone with liberal political beliefs.” As evidence, she points to a posting on a blog maintained by the agent, a veteran who served in Iraq, and his family. The item is a copy of a popular Internet meme about an incident that supposedly took place in an introductory college biology course. According to the story, a “typical liberal college professor and avowed atheist” declares his intent to prove that there is no God by giving the creator 15 minutes to strike him from the podium. A few minutes before the deadline, a Marine “just released from active duty and newly registered” walks up to the professor and knocks him out with one punch. When the professor recovers and asks for an explanation, the Marine replies, “God was busy. He sent me.”

    This makes it look really like this was a single agent who was unhappy with the left-wing views she had. At minimum, it is wildly inappropriate for a government agent in such a position to have that sort of thing on their blog (aside from it being just stupid). That goes together with the statement in the article:

    Attorney Joseph Kaplan, of the Washington, D.C., firm Passman & Kaplan, says that, in his experience, the most common reasons for a finding of unsuitability are lying about one’s educational background, one’s employment history, or one’s criminal record. “If OPM determines that the person has misled or provided false information,” he says, “they can be declared unfit for federal service.”

    Kaplan says he’s never heard of anyone being drummed out for political activity that occurred decades ago. At the same time, he says, the government’s decision is based not on anything Barr did during the 1980s but on how she explained those activities to federal investigators after coming to work at NSF.

    Together this paints a potential picture of a specific agent going after someone they didn't like due to their political views and a bureaucracy going into overdrive to protect that decision. On the other hand, it isn't like she had no connections to the third organization- she knew two of the people who were convicted of the murder and by her own description kept up a correspondence with one of them while he was in prison. But keeping up correspondence with someone in prison is not evidence by itself of any problem, and there's really been no evidence presented that she lied or attempted to mislead in any way.

    The article notes that this may be due to more general post-Snowded reactions which are making these sorts of things more common. In that case, this is exactly the wrong response.