HFT is alleged to be a problem for non-HFT firms. But the 'damage' is impossible to quantify or even justify. They make trades just like joe schmoe, just far faster. Unless you're going to say that me dumping a stock I dislike or buying one that I think is good causes damages this becomes impossible.
If you're looking at the 440MM loss from this HFT issue - it's not fake or hidden. Knight is very much taking a half-billion dollar hit to their income and portfolio.
Sorry but this whole idea doesn't 'fly'. Avionics are *NOT* the type of cutting edge technology used in stock market matching engines or HFT engines. Avionics are designed to be utter reliable to such a degree that they wind up using older tech. The deployment and approval cycle is also long enough that 'new' for a plane is probably years out of date.
HFTs on the other hand, are bleeding edge systems with essentially a cost-is-no-factor approach. You're talking about a world where microseconds are very litterally counted. 10G and higher network connections - not for data throughput but because it lowers latency but a small but appreciable amount. No, they obviously don't want the FUBAR situaion Knight had because of pushing tech but to assume the stock market is using tech with any resemblance to what's in the DreamLiner shows a lack of understanding of both worlds.
Let's use a car analogy! Sure you can make a race car utterly reliable and safe - it's called a Volvo.* It will undoubtely get you to the finish line for race after race after race with no maintenance while the cars meant for the race break down, crash, need maintenance and so on. Just like race car accidents, you don't usually hear about trading mistakes unless they're spectacular.
It's not reaction mass that is the problem, it's the energy budget to move it. Splitting the rock would consume a large amount of energy by itself. Then you still have the gravitational attraction between the halves which would reduce your delta v by some appreciable amount - unsure how much but we're talking substantial mass so it might wind up being greater than the momentum imparted by any nuclear blast we're capable of.
As another reply stated, it's much easier to use a small chunk of the asteroid, vaporized, are your reaction mass. Plus this way you could, in theory, have multiple detonations over time instead of one all-or-nothing detonation.
This all assumes you manage to split the asteroid and/or move it...not just fracture it into a handful of chunks that don't have any real change in direction.
Your idea is based on the assumption that the asteroid is *solid* and there is somewhere you can push against or chain down to. The gravity tow gives a method of moving an asteroid without having to touch it and could work regardless of the object's solidity.
For your specific points
1) Yep. You don't move an asteroid quickly. 2) Yep. Exactly the same if you were pushing the asteroid too. Both the spacecraft and asteroid move in tandem in either situation (thus identical delta v). Basic physics says the energy expenditure is identical. 3) Yep. A basic laser rangefinder and feedback control loop are part of scientific equipment, i'm sure we could adapt *something* to the job.
So despite being correct on all three points, I'm going to have to call your conclusion invalid. While it makes better movies, it doesn't work as well in RL.
I've eaten McD about 5 times a week for the last decade. Probably closer to two if you include BK and Wendys. Yeah seriously. My Dr might have his own heart attack if he knew.
The only time i've gotten food poisoning is from the hot dog at 7-11 at 3AM in florida oddly enough.
The problem is the more big chains try to standardize their food the more stupid children ignore the rules. Steak fries might need 7-10 minutes but the thin McD fries need 3:12 (or whatever) and a 30 second variance means overcooked or soggy fries. You DO get consistent quality if the procedures are followed exactly. Last time I checked minimum-wage jobs are not the best place to get people to perform admirably and consistently.
Let me get this straight. They install an "update" on my router that lets them monitor my internet usage - all without my consent?
I'd say it couldn't possibly be that bad...but the I look to what FB does and shake my head. I like their routers, but there is NO CHANCE whatsoever that I will give a 3rd party my entire house's internet browsing history. You couldn't get me to do that if you gave me a free router AND free internet.
Not to mention I didn't even click-through an EULA on that router that could get them an idea they have some kind of "right".
It's MY router, I bought it. and it's not some quasi-goods digital product. This is a physical item. You want to back-door my router and install crippled firmware? I'll sign up with the class action if this is the case.
I don't want anyone *at all* to be able to update my router from the internet (or WiFi for that matter). In fact, almost every router has remote (i.e. internet) side administration disabled for obvious security reasons. Now they include the word 'cloud' and it's OK?
Hell, this isn't even cloud architecture anyway. It's just a web-based (pseudo-remote) remote administration tool. You'd think Cisco of all people would understand that.
Then I see things like this and can't help but smile at the "progress" : Re: EA4500: weird login screen; can't login Options 06-26-2012 05:10 PM
I found a hole... Dynamic DNS password is displayed in plain text
Except there have been several examples of people who cut out the middle man and offered up their music - either for whatever the consumer decided to pay (trent resnor comes to mind) or free while asking for a donation...and did far better than they would have.
Not all people are opposed to compensating artists. In fact, I'd go out on a limb and say while the majority of people no longer view copyright infringement as 'wrong' the majority of people WOULD compensate an artist for their work if a reasonable, non-abusive system was available.
100+ year copyright entitlements? The music industry finally 'got over' DRM only to see movies and (of all things) BOOKS jumping in right afterwards? Assignable copyright that corporations gobble up into an "industry?" Bewildering and arbitrary rules that prohibit things like a parent posting their 3 year old (barely) singing a small portion of a song? No. It's abuses like that which give people the moral justification to take the easy way out and pirate music.
Too little is effectively zero (or negative $) for MANY artists. Even when it's not, they would do better if you mailed them a $1 bill and downloaded their entire anthology off TPB.
Given that Blue Gene/P is 250,000 processors that's not impossibly large by any means. You won't scale 1:1 by increasing GPU count but if you're going that scale you can also look at dedicated/custom hardware for greatly increased GPU density.
Nothing that's available to you or I, but large enterprise or government certainly have the resources to get time on (or outright purchase) such a system.
And if you don't understand the basic concepts behind the topic, applying any amount of mathematics will not overcome the initial limitation.
When brute forcing passwords you don't (typically) know anything about them. It's extremely unlikely you will know "5 small letters and one capital letter" no matter how pretty it makes the calculation. You have to search the random address space based on your criteria in increasing orders of complexity.
Searching the lower case space is trivial compared to lower+upper (and so on) so you start there and move upwards in complexity and length. Adding "one capital letter" forces you into the greater address space because the first will not produce a match.
I will agree that there are a lot of stupid people out there. But our representative democracy is a big part of that reason. Despite what we're 'taught' about democracy you quickly learn that "normal people" have essentially no voice excluding exceptions like the Streisand effect and the lucky viral video.
Flip that around. Give people - individual people - the power and responsibility. They also get the consequences. At least when the town budget comes up they can decide to vote out the subsidy for the politicians cousin's business in favor of keeping the park open. Sure, he employs 5 people who will be fired...but boo hoo. He wouldn't have been in the first place if he wasn't getting unfair, free money. This is true transparency in government.
MY QUESTION - beyond hack-proofing the system, how will each individual be registered so they get one vote either online or in person? (assuming there's a non-computer version of this as well to be fair to the computer illiterate) Short of barcoding people or taking/. level techie and assigning people encryption keys they won't understand of course.
Seriously, phones and tablets are getting ~1080P screens but most of the laptops on the market are stuck with the crappy 1366x768 even though they're MUCH larger and it would make a visible and FUNCTIONAL difference.
I use SMS heavily at times. Multiple conversations, outage reports, server health monitoring, etc. and I can use several hundered a day easily. Even if each ~160 character message takes 50 times more bandwidth as data traffic than it's actual size and I'm looking at a few MB for the day. Yet if I paid individually they'd charge me ~$50 or more.
So yes, it's possible carriers have had to expand or change how they handle SMS to manage the increased number sent, but the overall impact on their available bandwidth is negligable - especially compared to the cost.
Also when plenty of fully grown adults won't stand up to 'authority' like this how can you expect a 16 year old?
Jeesh, when kids act out or thing for themselves they're labeled rebels. They they do what they're told they're labeled timid. No wonder kids are growing up so dysfunctional
Your friends need to learn parenting and get her to a shrink. It's one thing to rebel against authority, it's another to openly and regularly make low-level suicide attempts.
They err on the side of caution in "preventing" terrorism.
Moral justification by the idiots making the rules runs along the lines of 'any policy exception we make a rule will be utilized by terrorists.' What is truly ironic is the existing exceptions offer ample opportunity for terrorists - except the opportunity is realistically useless. No one is going to take over a plane even if they bring an AK47 on board. Crash it? Possibly. Kill people, probably. Take over it? No, that will never happen while there's passengers on the plan who lived through or heard about 9/11.
Of course, anything that might actually, realistically help prevent terrorism would just be considered racial profiling and thrown out.
TSA agents are not police no matter how much they try to act like them. The real problem is people *need* to fly in many cases. This is a 16 year old girl on her way home - she didn't have the option to cancel a trip because of a bad tsa policy. She's also (in many states at least) too young to drive and definitely too young to rent a car from almost any company. That leaves busses and trains - without advance planning by a minor far from home. She had effectively no choice but to submit to screenings - and THIS is why the fact you cannot refuse TSA/FAA rules on the basis that flying is not a 'need' is utter bullshit.
No no no...we want every criminal put away for life or until rehabilitated* no matter how minor the crime. We ALSO want NO criminals executed no matter how serious the crime. Texas may disagree occasionally but typically there's plenty of outcry against capital punishment.
With this high tech theft, maybe someone will be able to deprive you of income derived from your car while still leaving the car intact in your garage. You should be entitled to $1biiiiiillion dooolars in compensation based on current trends.
*rehabilitated to be defined as a properly trained criminal that is either dumb enough to get caught immediately or smart enough not to get caught the next time
How many people on/. fancy themself a middle class white hipster though?
On a slightly more serious note... Jobs is well known for being short with people, tempermental, and an extreme perfectionist. Yes, that led to good products (we can debate the specific merits all day - but overall Apple makes well designed, if sometimes intentionally limited, products) but I doubt even fanbois will disagree he ruled with an iron fist.
Bill Gates didn't run MS like that and he retired pretty much to spend the rest of his life helping others by the means his money gives him. Terrible, terrible man.
Anyway! I'm also pretty sure he's not RUNNING a nuclear power company. He is investing in it. There's a world of difference in that. If you think MS had restrictions for being a monopoly or the financial markets are regulated, or our government is becoming overbearing you have NO IDEA how regulated the nuclear industry is. Not necessarily well regulated, but it's not like he can go in and say 'hey, let's just not build this part of the plans because it's expensive'
Give him kudos if anything - he's not only putting his money where his mouth is, but doing it to help further science that our planet and society desperately need. Even someone with his wealth doesn't toss that much money unless they have a good reason...and I think even MS haters can agree Bill Gates got out of the make-more-money-for-me game quite some time ago.
That's great and all but you'd have to step it up on the envelope itself. It's child's play to 'see through' even security envelopes for someone with the time and interest (and some money) - far easier than steaming open envelopes once you get beyond small quantities.
If we now have devices that can (literally) see through walls in proof-of-concept about I'm pretty sure a lowly envelope doesn't stand a chance. If for no other reason than you by definition lose control of your letter once the carrier takes it.
Except maybe on southpark I can't recall any requests by cows for more shoulder room (I'm pretty sure I have LESS room than a cow stall on this flight i'm writing from). How can you claim it's cruel when a cow can't possibly know any better and no reasonably believable scientist has shown them smart enough to even understand the concept? I don't condone animal *abuse* but reject the notion that we have to provide animals with a standard of living equal to a human.
Besides that, nature by itself is plenty cruel. I'm sure a zebra being torn apart by a pack of lions is a tab bit less pleasant than the assembly line quick-kill the meat industry uses. How about when a wild animal is maimed and lives that way until disease or starvation kill it? Instead the meat industry ensures regular food and water and livable conditions.
Your vegetarian argument reflects a minuscule portion of our population - plenty of which are malnourished even if they refuse to admit it. We are not exclusive carnivores - true. We are omnivores with a strong bias toward being carnivores. Our bodies are designed much more towards consuming meat than plants. You don't *have* to eat meat, but your body is definitely designed with a preference towards it and typically you are healthier if you do so.
Slashdot Mirror
Do people even read the *titles* or just see "wall st" and cry out about bailouts this and unfair 1% that?
No one is bailing them out. This lesson cost the company a half billion dollars. Is that brutal enough for you?
You misunderstand...something. I'm not sure what.
HFT is alleged to be a problem for non-HFT firms. But the 'damage' is impossible to quantify or even justify. They make trades just like joe schmoe, just far faster. Unless you're going to say that me dumping a stock I dislike or buying one that I think is good causes damages this becomes impossible.
If you're looking at the 440MM loss from this HFT issue - it's not fake or hidden. Knight is very much taking a half-billion dollar hit to their income and portfolio.
Sorry but this whole idea doesn't 'fly'. Avionics are *NOT* the type of cutting edge technology used in stock market matching engines or HFT engines. Avionics are designed to be utter reliable to such a degree that they wind up using older tech. The deployment and approval cycle is also long enough that 'new' for a plane is probably years out of date.
HFTs on the other hand, are bleeding edge systems with essentially a cost-is-no-factor approach. You're talking about a world where microseconds are very litterally counted. 10G and higher network connections - not for data throughput but because it lowers latency but a small but appreciable amount. No, they obviously don't want the FUBAR situaion Knight had because of pushing tech but to assume the stock market is using tech with any resemblance to what's in the DreamLiner shows a lack of understanding of both worlds.
Let's use a car analogy! Sure you can make a race car utterly reliable and safe - it's called a Volvo.* It will undoubtely get you to the finish line for race after race after race with no maintenance while the cars meant for the race break down, crash, need maintenance and so on. Just like race car accidents, you don't usually hear about trading mistakes unless they're spectacular.
*substitute your own preferred car mfg
It's not reaction mass that is the problem, it's the energy budget to move it. Splitting the rock would consume a large amount of energy by itself. Then you still have the gravitational attraction between the halves which would reduce your delta v by some appreciable amount - unsure how much but we're talking substantial mass so it might wind up being greater than the momentum imparted by any nuclear blast we're capable of.
As another reply stated, it's much easier to use a small chunk of the asteroid, vaporized, are your reaction mass. Plus this way you could, in theory, have multiple detonations over time instead of one all-or-nothing detonation.
This all assumes you manage to split the asteroid and/or move it...not just fracture it into a handful of chunks that don't have any real change in direction.
Google Nuclear bunker buster.
They might not burrow into solid iron particularly well but loose rock or even meters of concrete don't stand a chance.
Your idea is based on the assumption that the asteroid is *solid* and there is somewhere you can push against or chain down to. The gravity tow gives a method of moving an asteroid without having to touch it and could work regardless of the object's solidity.
For your specific points
1) Yep. You don't move an asteroid quickly.
2) Yep. Exactly the same if you were pushing the asteroid too. Both the spacecraft and asteroid move in tandem in either situation (thus identical delta v). Basic physics says the energy expenditure is identical.
3) Yep. A basic laser rangefinder and feedback control loop are part of scientific equipment, i'm sure we could adapt *something* to the job.
So despite being correct on all three points, I'm going to have to call your conclusion invalid. While it makes better movies, it doesn't work as well in RL.
I've eaten McD about 5 times a week for the last decade. Probably closer to two if you include BK and Wendys. Yeah seriously. My Dr might have his own heart attack if he knew.
The only time i've gotten food poisoning is from the hot dog at 7-11 at 3AM in florida oddly enough.
The problem is the more big chains try to standardize their food the more stupid children ignore the rules. Steak fries might need 7-10 minutes but the thin McD fries need 3:12 (or whatever) and a 30 second variance means overcooked or soggy fries. You DO get consistent quality if the procedures are followed exactly. Last time I checked minimum-wage jobs are not the best place to get people to perform admirably and consistently.
Didn't you see the video? It still is...or is again 'Break My Window'
In other news, the 80's are back.
Let me get this straight. They install an "update" on my router that lets them monitor my internet usage - all without my consent?
I'd say it couldn't possibly be that bad...but the I look to what FB does and shake my head. I like their routers, but there is NO CHANCE whatsoever that I will give a 3rd party my entire house's internet browsing history. You couldn't get me to do that if you gave me a free router AND free internet.
Not to mention I didn't even click-through an EULA on that router that could get them an idea they have some kind of "right".
It's MY router, I bought it. and it's not some quasi-goods digital product. This is a physical item. You want to back-door my router and install crippled firmware? I'll sign up with the class action if this is the case.
I don't want anyone *at all* to be able to update my router from the internet (or WiFi for that matter). In fact, almost every router has remote (i.e. internet) side administration disabled for obvious security reasons. Now they include the word 'cloud' and it's OK?
Hell, this isn't even cloud architecture anyway. It's just a web-based (pseudo-remote) remote administration tool. You'd think Cisco of all people would understand that.
Then I see things like this and can't help but smile at the "progress" :
Re: EA4500: weird login screen; can't login
Options
06-26-2012 05:10 PM
I found a hole... Dynamic DNS password is displayed in plain text
Except there have been several examples of people who cut out the middle man and offered up their music - either for whatever the consumer decided to pay (trent resnor comes to mind) or free while asking for a donation...and did far better than they would have.
Not all people are opposed to compensating artists. In fact, I'd go out on a limb and say while the majority of people no longer view copyright infringement as 'wrong' the majority of people WOULD compensate an artist for their work if a reasonable, non-abusive system was available.
100+ year copyright entitlements? The music industry finally 'got over' DRM only to see movies and (of all things) BOOKS jumping in right afterwards? Assignable copyright that corporations gobble up into an "industry?" Bewildering and arbitrary rules that prohibit things like a parent posting their 3 year old (barely) singing a small portion of a song? No. It's abuses like that which give people the moral justification to take the easy way out and pirate music.
Too little is effectively zero (or negative $) for MANY artists. Even when it's not, they would do better if you mailed them a $1 bill and downloaded their entire anthology off TPB.
Given that Blue Gene/P is 250,000 processors that's not impossibly large by any means. You won't scale 1:1 by increasing GPU count but if you're going that scale you can also look at dedicated/custom hardware for greatly increased GPU density.
Nothing that's available to you or I, but large enterprise or government certainly have the resources to get time on (or outright purchase) such a system.
And if you don't understand the basic concepts behind the topic, applying any amount of mathematics will not overcome the initial limitation.
When brute forcing passwords you don't (typically) know anything about them. It's extremely unlikely you will know "5 small letters and one capital letter" no matter how pretty it makes the calculation. You have to search the random address space based on your criteria in increasing orders of complexity.
Searching the lower case space is trivial compared to lower+upper (and so on) so you start there and move upwards in complexity and length. Adding "one capital letter" forces you into the greater address space because the first will not produce a match.
I will agree that there are a lot of stupid people out there. But our representative democracy is a big part of that reason. Despite what we're 'taught' about democracy you quickly learn that "normal people" have essentially no voice excluding exceptions like the Streisand effect and the lucky viral video.
Flip that around. Give people - individual people - the power and responsibility. They also get the consequences. At least when the town budget comes up they can decide to vote out the subsidy for the politicians cousin's business in favor of keeping the park open. Sure, he employs 5 people who will be fired...but boo hoo. He wouldn't have been in the first place if he wasn't getting unfair, free money. This is true transparency in government.
MY QUESTION - beyond hack-proofing the system, how will each individual be registered so they get one vote either online or in person? (assuming there's a non-computer version of this as well to be fair to the computer illiterate) Short of barcoding people or taking /. level techie and assigning people encryption keys they won't understand of course.
Seriously, phones and tablets are getting ~1080P screens but most of the laptops on the market are stuck with the crappy 1366x768 even though they're MUCH larger and it would make a visible and FUNCTIONAL difference.
You have a valid point - to a limited degree.
I use SMS heavily at times. Multiple conversations, outage reports, server health monitoring, etc. and I can use several hundered a day easily. Even if each ~160 character message takes 50 times more bandwidth as data traffic than it's actual size and I'm looking at a few MB for the day. Yet if I paid individually they'd charge me ~$50 or more.
So yes, it's possible carriers have had to expand or change how they handle SMS to manage the increased number sent, but the overall impact on their available bandwidth is negligable - especially compared to the cost.
+1
Also when plenty of fully grown adults won't stand up to 'authority' like this how can you expect a 16 year old?
Jeesh, when kids act out or thing for themselves they're labeled rebels. They they do what they're told they're labeled timid. No wonder kids are growing up so dysfunctional
Your friends need to learn parenting and get her to a shrink. It's one thing to rebel against authority, it's another to openly and regularly make low-level suicide attempts.
Right intentions, wrong topic.
They err on the side of caution in "preventing" terrorism.
Moral justification by the idiots making the rules runs along the lines of 'any policy exception we make a rule will be utilized by terrorists.' What is truly ironic is the existing exceptions offer ample opportunity for terrorists - except the opportunity is realistically useless. No one is going to take over a plane even if they bring an AK47 on board. Crash it? Possibly. Kill people, probably. Take over it? No, that will never happen while there's passengers on the plan who lived through or heard about 9/11.
Of course, anything that might actually, realistically help prevent terrorism would just be considered racial profiling and thrown out.
Yes. By the police.
TSA agents are not police no matter how much they try to act like them. The real problem is people *need* to fly in many cases. This is a 16 year old girl on her way home - she didn't have the option to cancel a trip because of a bad tsa policy. She's also (in many states at least) too young to drive and definitely too young to rent a car from almost any company. That leaves busses and trains - without advance planning by a minor far from home. She had effectively no choice but to submit to screenings - and THIS is why the fact you cannot refuse TSA/FAA rules on the basis that flying is not a 'need' is utter bullshit.
No no no...we want every criminal put away for life or until rehabilitated* no matter how minor the crime. We ALSO want NO criminals executed no matter how serious the crime. Texas may disagree occasionally but typically there's plenty of outcry against capital punishment.
With this high tech theft, maybe someone will be able to deprive you of income derived from your car while still leaving the car intact in your garage. You should be entitled to $1biiiiiillion dooolars in compensation based on current trends.
*rehabilitated to be defined as a properly trained criminal that is either dumb enough to get caught immediately or smart enough not to get caught the next time
It's only 'stalkerish' if you don't like him/her an want the attention.
To clarify - it's not the ACT, but the (completly arbritrary) interpretation by the other person.
Since we seem to live in a zero tolerance society it's lose-lose and all the "great catches" wonder why on one approaches them.
How many people on /. fancy themself a middle class white hipster though?
On a slightly more serious note...
Jobs is well known for being short with people, tempermental, and an extreme perfectionist. Yes, that led to good products (we can debate the specific merits all day - but overall Apple makes well designed, if sometimes intentionally limited, products) but I doubt even fanbois will disagree he ruled with an iron fist.
Bill Gates didn't run MS like that and he retired pretty much to spend the rest of his life helping others by the means his money gives him. Terrible, terrible man.
Anyway! I'm also pretty sure he's not RUNNING a nuclear power company. He is investing in it. There's a world of difference in that. If you think MS had restrictions for being a monopoly or the financial markets are regulated, or our government is becoming overbearing you have NO IDEA how regulated the nuclear industry is. Not necessarily well regulated, but it's not like he can go in and say 'hey, let's just not build this part of the plans because it's expensive'
Give him kudos if anything - he's not only putting his money where his mouth is, but doing it to help further science that our planet and society desperately need. Even someone with his wealth doesn't toss that much money unless they have a good reason...and I think even MS haters can agree Bill Gates got out of the make-more-money-for-me game quite some time ago.
That's great and all but you'd have to step it up on the envelope itself. It's child's play to 'see through' even security envelopes for someone with the time and interest (and some money) - far easier than steaming open envelopes once you get beyond small quantities.
If we now have devices that can (literally) see through walls in proof-of-concept about I'm pretty sure a lowly envelope doesn't stand a chance. If for no other reason than you by definition lose control of your letter once the carrier takes it.
Except maybe on southpark I can't recall any requests by cows for more shoulder room (I'm pretty sure I have LESS room than a cow stall on this flight i'm writing from). How can you claim it's cruel when a cow can't possibly know any better and no reasonably believable scientist has shown them smart enough to even understand the concept? I don't condone animal *abuse* but reject the notion that we have to provide animals with a standard of living equal to a human.
Besides that, nature by itself is plenty cruel. I'm sure a zebra being torn apart by a pack of lions is a tab bit less pleasant than the assembly line quick-kill the meat industry uses. How about when a wild animal is maimed and lives that way until disease or starvation kill it? Instead the meat industry ensures regular food and water and livable conditions.
Your vegetarian argument reflects a minuscule portion of our population - plenty of which are malnourished even if they refuse to admit it. We are not exclusive carnivores - true. We are omnivores with a strong bias toward being carnivores. Our bodies are designed much more towards consuming meat than plants. You don't *have* to eat meat, but your body is definitely designed with a preference towards it and typically you are healthier if you do so.