They seem to be assuming some idealistic world where everything goes as they plan.
I mean, how will the system react to motorcyclist merging into the middle of it to pass to the other side? What about a car trying to merge into the middle of it? Proper driving distance requires enough space for that to happen after all. Do they really expect to have an 8 car merging dead zone?
If they're in the left lane then they need to get into it somehow and I also doubt every car can drive at the speed limit (or above it rather) so the left is out. An eight car no merging zone would annoy a lot of people so every other lane is out as well.
That's not even getting into people who have malicious intent and try to make such a beast crash by, for example, running a specifically broken transmitter.
When I passed my test, the first thing I did was drive on a motorway and light up a cigarette. Only to hear a loud horn and realise I was drifting into the other lane. I understand this could have been fatal and this has helped me realise the seriousness of doing ANYTHING whilst driving. Since then I avoid smoking and driving. Although I don't agree, maybe smoking and changing radio stations should be tested too (if so many people do this anyway)?
In other words you drove on a road you weren't ready for and are blaming cigarettes for your inherent lack of driving skill. I had my license for three months before I even considered going on the highway alone.
Number 1, I would never use closed source encryption technology. I know for a fact that MS has a backdoor for Bitlocker.
Your own delusions don't count as fact. Amusing how everyone who says this somehow fails to post any actual facts to back up their claims.
Full disk encryption, with a USB drive for 2 factor authentication is iron clad.
Given that the whole point of the article we're posting comments under is that full disk encryption is NOT ironclad I can't do anything but laugh.
I need that flexibility. Every hour of downtime costs me money. Why tie myself in knots with something that for my purposes isn't going to give me any real increase in security. That was my original point.
There's a big difference between something not being useful for you, not being useful to the average person and not being useful for anyone. Apparently you're incapable of understanding the distinction or that not everyone is identical to you or has the exact same needs as you.
I deal with the real world not some pie in the sky fantasy like what you must be thinking about.
Judging by your comments it's you who seems to be living in a fantasy world.
Disaster? Fucked? It's called a BACKUP. If there's ANY chance of a serious disaster from losing your machine then you've already failed. It should be a minor inconvenience and that's it.
Back to the topic at hand. Obviously anyone who is paranoid enough about their data to use such systems considers the slightly lower chance of having their data compromised to be much more important than the slightly higher chance of losing, at most, a day of work.
19"? Hahahahaha. People still use monitors that small?
I've got a 21" and a 15" lcd at home on those swinging arms so I can reposition them as needed. I had two 15" when lcds were becoming popular. At work I have a 24" and some coworkers have TWO 24" lcd.
So yeah, I'll take triple the resolution and size in the same area over unimportantly worse image quality.
If your motherboard crashes and the TPM chip goes pfft, is there a way to recover the drive?
And if your hard drive head crashes and physically destroys your platters if there a way to recover the drive? If you laptop is run over by a steam roller is there a way to recover the drive? If you laptop is stolen is there a way to recover the drive?
Shit happens. If you don't have up to date backups then you're an idiot and deserve to lose your data, plain and simple.
Satellites as a rule aren't maintained or refueled, they're simply shoved somewhere where their decrepit hulks can hit anything useful. Cheaper that way oddly enough.
So you're saying that woman are inherently offended by porn of either gender, naked man and woman? That their fragile little selves can't handle such topics without fainting? And you're calling the presenter a sexist? The presentation was inappropriate but trying to say it was sexist only makes you look like one.
So you make the cells SMALLER. Who ever said you need to add new towers in the exact same place as an existing one.
Add 4 cell phone towers around an existing one, some distance away, and lower the power output appropriately. Now you've got 5 times the bandwidth in roughly the same area.
Sorry but my conscience doesn't feel very right about letting a billion people wallow in poverty, disease, starvation, abuse and so on. Then again I care about actually improving the lot of mankind not about deluding myself so I can feel better than some other guy. The world is not black and white. Every government does horrid abuses of one form or another. How many innocent bystanders died in Iraq due to actions of the US? How many died in Africa because you're not donating an extra $x to help them?
In the end the Chinese government is doing a bloody good job and who am I to complain about them. The west took centuries to transition over to democracy with abuses of every kind and type. You don't shove "democracy" onto people not prepared for it and let them fend for themselves unless you're a monster. The Chinese government seems to understand that political freedom is inevitable given their economic plans and a slow transition, with a slow cultural transition, seems infinitely more likely to succeed. That said I don't believe the Chinese system is stable in the long run and massive abuses are possible in the future, as they had in the past, however as I see it the alternative is having massive abuses happen now.
Reviewers seem to be idiots or gullible. I got to hear what reviewers at a top school considered the best essay from the new york area.
It was an essentially generic essay on 9/11 about some kid who couldn't use her parent's $2million apartment for a month. Waist thick engineered heart string pulling bullshit and the reviewers couldn't see through it. There was absolutely nothing in it that could have elicited actual sympathy (no dead relatives, no living in a makeshift shelter, nothing) if you thought about it for 30 seconds but the reviewers fell for it hook, line and sinker.
That's idiotic, it's also why the US school system is in some ways better than that of many other countries. Tests and grades do not describe an individual. Standardized tests are at best a decent metric which means they're horrid at finding actual top students (too few of them and too much noise in such tests). Grades are near useless since high schools assign them very arbitrarily.
Top schools know such things. They know that one actual hard working genius is worth a hundred mediocre hard workers. They want to have a reputation for putting out the best and only putting out above average doesn't cut it.
For example, the valedictorian at my high school was far from the most hard working or the most intelligent student that year. He was simply a person who spent all his time doing perfectly in his average difficulty classes and tests. The truly intelligent and hard working students spent their time taking college level classes, actual courses at colleges, doing outside research and so on. That valedictorian will do well in college and afterwards but he won't be winning a nobel prize. One of the others might.
Christ, did you fail out of CS or something? It's called a hash map, constant time no matter how many ips you have stored as long as you got enough ram. For a million, a small number in computer terms, a paltry 10mb or so is all you'll need.
When did I ever say the electricity would be free? Do you get your gas for free? There is still amazing concept called charging people for things, you may wish to look it up. It's also amazing how quickly people will set things up if they make money from it, like all those ATMs everywhere that the store owners get a cut of the fees from.
Stop making assumptions about the availability and widespread nature of human kindness.
I never id, you're the one trying to do that.
We do not all live in cities, nor are all people (or corporate entities) going to go through the hassle of retrofitting their buildings or roads so that your electric car works.
An electric car is still a fucking car, roads stay the same...are you really that much of an idiot? Actually those living in cities would have the MOST difficulty with electric cars since they'd have much more difficulty in charging their cars at night. There is also of course no need for everyone to do anything but simply for enough people to do it.
NASA and the FAA have been working on a small airport system for years to try and replace the massive hub traffic problems they encounter currently.
The hub system costs less which is why it's used. This matters why exactly?
There have been viable systems for cars that drive themselves. But the infrastructure is not there, and the cost to overhaul it is astronomical (as in, more money than we can reasonably assume would be available for the majority of state and country governments).
This matters why exactly? Frankly, I'd guess the costs of such a system would be more than the GDP of the US for a decade. The technology is not there unless you want something horribly expensive (as in an order of magnitude more expensive than the average car) or prone to catastrophic failures (300 car pileups due to hardware failures in the road and lack of proper sensors in the car itself).
I disagree. Existing power grids can take a lot more load as long as it's off-peak.
Gas stations are everywhere and so you'd need to overhaul every neighborhood. Running new massive cable to them would be a huge undertaking due to the sheer amount of current on each one and the extra requirements that'd probably have.
And that's going to be peak load which means a lot more new power stations, upgrading almost all the substations and so on. None of which will be used 70% of the time but it's that 30 minute time when everything is on that's the killer.
You're making contradictory assumptions. You can't claim that rapid charging is only for long distance trips and then claim that the 99% of commuters on highways will need to use it.
The only people who need a quick recharge are those going more than 500 miles at once with no long stops. If they stop to sleep then that's 10 hours to recharge at a hotel/motel. If they get to their destination same thing. If they stop to eat same thing. If the car isn't driving it can be charging.
With some rare exception even long distance trips are generally less than 500 miles one way and probably even both ways.
It's silly to take a system designed for gasoline and apply it to electric cars with no consideration for the inherent differences. Unlike gasoline electricity is everywhere. Every street, building, house and apartment has a gigantic ever refilling storage tank of it. You don't need to have special locations with giant underground tanks and tanker trunks to deal with it.
- burn more natural gas or coal. In North America we burn copious amounts of that already to generate electricity. But then again,I'll stick with my gasoline engine if its going to come to that. As a bonus, in this case it is more wasteful to power our electric cars this way. We would be better of fueling our cars directly with natural gas. We would save the energy lost converting to electricity. Coal....could be complicated.
No, we wouldn't save any energy. That's the whole point. Fossil fuel car engines are horribly inefficient. Giant immobile multi-stage power generators aren't nearly as bad. And making, transferring and using electricity is bloody perpetual motion compared to those. That's not even getting into how much better pollution control measures can be when mass isn't a factor.
A gas car engine transfers around 25% of the energy of the gas it burns into the wheels. Most of the rest is lost as heat.
A modern natural gas generator is up to I think 60% efficient in generating electricity. Even the really old ones can get up to 35% I think. Electric grid, battery charging and battery discharging is say 85-90% efficient altogether. Electric engine is around 90% efficient in terms of energy to wheels. Altogether you end up using nearly half as much energy as a gas powered car and even at worst you still use a bit less energy.
- innovate - find new power sources. I hope we do this too. Although the next big breakthrough could happen tomorrow, this will probably also take a lot of time and money.
It's called nuclear, it'll be ready as soon as people stop protesting.
It weights 50lbs, you're not going to move it around your house at will unless you shove some wheels on it. Then you have to drag your monitor, find a flat place for the keyboard, plug all the 20 cables back in and so on. There's a handle I'm guessing so you can move it around at all without spending the next week with ice on your back.
That said, a car accident has a massive amount of energy involved even at low speeds. That energy has to go somewhere. In a new car the energy goes into destroying the vehicle or parts of it. In an old car the energy goes into throwing the driver around. Essentially, at some people people decided that losing a car is preferably to losing their life or suffering life long disability.
Hadoop is not really a file system or rather as you found out it doesn't make a good one. It's a framework for doing a certain type of parallel computing (map reduce) on very large amounts of data. There's a filesystem (hdfs) in there but it's pretty much designed for running such parallel jobs rather than being a clustered NAS. The filesystem is in some ways even irrelevant as there's actually support for various filesystems (Amazon S3, etc.).
Slashdot Mirror
They seem to be assuming some idealistic world where everything goes as they plan.
I mean, how will the system react to motorcyclist merging into the middle of it to pass to the other side? What about a car trying to merge into the middle of it? Proper driving distance requires enough space for that to happen after all. Do they really expect to have an 8 car merging dead zone?
If they're in the left lane then they need to get into it somehow and I also doubt every car can drive at the speed limit (or above it rather) so the left is out. An eight car no merging zone would annoy a lot of people so every other lane is out as well.
That's not even getting into people who have malicious intent and try to make such a beast crash by, for example, running a specifically broken transmitter.
When I passed my test, the first thing I did was drive on a motorway and light up a cigarette. Only to hear a loud horn and realise I was drifting into the other lane. I understand this could have been fatal and this has helped me realise the seriousness of doing ANYTHING whilst driving. Since then I avoid smoking and driving. Although I don't agree, maybe smoking and changing radio stations should be tested too (if so many people do this anyway)?
In other words you drove on a road you weren't ready for and are blaming cigarettes for your inherent lack of driving skill. I had my license for three months before I even considered going on the highway alone.
Which streaming services do you use? I'm interesting in finding some more to use aside from netflix.
Number 1, I would never use closed source encryption technology. I know for a fact that MS has a backdoor for Bitlocker.
Your own delusions don't count as fact. Amusing how everyone who says this somehow fails to post any actual facts to back up their claims.
Full disk encryption, with a USB drive for 2 factor authentication is iron clad.
Given that the whole point of the article we're posting comments under is that full disk encryption is NOT ironclad I can't do anything but laugh.
I need that flexibility. Every hour of downtime costs me money. Why tie myself in knots with something that for my purposes isn't going to give me any real increase in security. That was my original point.
There's a big difference between something not being useful for you, not being useful to the average person and not being useful for anyone. Apparently you're incapable of understanding the distinction or that not everyone is identical to you or has the exact same needs as you.
I deal with the real world not some pie in the sky fantasy like what you must be thinking about.
Judging by your comments it's you who seems to be living in a fantasy world.
Disaster? Fucked? It's called a BACKUP. If there's ANY chance of a serious disaster from losing your machine then you've already failed. It should be a minor inconvenience and that's it.
Back to the topic at hand. Obviously anyone who is paranoid enough about their data to use such systems considers the slightly lower chance of having their data compromised to be much more important than the slightly higher chance of losing, at most, a day of work.
19"? Hahahahaha. People still use monitors that small?
I've got a 21" and a 15" lcd at home on those swinging arms so I can reposition them as needed. I had two 15" when lcds were becoming popular. At work I have a 24" and some coworkers have TWO 24" lcd.
So yeah, I'll take triple the resolution and size in the same area over unimportantly worse image quality.
If your motherboard crashes and the TPM chip goes pfft, is there a way to recover the drive?
And if your hard drive head crashes and physically destroys your platters if there a way to recover the drive? If you laptop is run over by a steam roller is there a way to recover the drive? If you laptop is stolen is there a way to recover the drive?
Shit happens. If you don't have up to date backups then you're an idiot and deserve to lose your data, plain and simple.
Satellites as a rule aren't maintained or refueled, they're simply shoved somewhere where their decrepit hulks can hit anything useful. Cheaper that way oddly enough.
Then it's not sexism, you can't have it both ways. If he'd preached about Jesus and offended a Buddhist girl would you call THAT sexist as well?
So you're saying that woman are inherently offended by porn of either gender, naked man and woman? That their fragile little selves can't handle such topics without fainting? And you're calling the presenter a sexist? The presentation was inappropriate but trying to say it was sexist only makes you look like one.
So you make the cells SMALLER. Who ever said you need to add new towers in the exact same place as an existing one.
Add 4 cell phone towers around an existing one, some distance away, and lower the power output appropriately. Now you've got 5 times the bandwidth in roughly the same area.
Do propel actually find such a figure attractive?
I'm asking because I'm disgusted by it more than anything. It's right smack dab in the middle of the uncanny valley in my eyes.
Sorry but my conscience doesn't feel very right about letting a billion people wallow in poverty, disease, starvation, abuse and so on. Then again I care about actually improving the lot of mankind not about deluding myself so I can feel better than some other guy. The world is not black and white. Every government does horrid abuses of one form or another. How many innocent bystanders died in Iraq due to actions of the US? How many died in Africa because you're not donating an extra $x to help them?
In the end the Chinese government is doing a bloody good job and who am I to complain about them. The west took centuries to transition over to democracy with abuses of every kind and type. You don't shove "democracy" onto people not prepared for it and let them fend for themselves unless you're a monster. The Chinese government seems to understand that political freedom is inevitable given their economic plans and a slow transition, with a slow cultural transition, seems infinitely more likely to succeed. That said I don't believe the Chinese system is stable in the long run and massive abuses are possible in the future, as they had in the past, however as I see it the alternative is having massive abuses happen now.
Reviewers seem to be idiots or gullible. I got to hear what reviewers at a top school considered the best essay from the new york area.
It was an essentially generic essay on 9/11 about some kid who couldn't use her parent's $2million apartment for a month. Waist thick engineered heart string pulling bullshit and the reviewers couldn't see through it. There was absolutely nothing in it that could have elicited actual sympathy (no dead relatives, no living in a makeshift shelter, nothing) if you thought about it for 30 seconds but the reviewers fell for it hook, line and sinker.
That's idiotic, it's also why the US school system is in some ways better than that of many other countries. Tests and grades do not describe an individual. Standardized tests are at best a decent metric which means they're horrid at finding actual top students (too few of them and too much noise in such tests). Grades are near useless since high schools assign them very arbitrarily.
Top schools know such things. They know that one actual hard working genius is worth a hundred mediocre hard workers. They want to have a reputation for putting out the best and only putting out above average doesn't cut it.
For example, the valedictorian at my high school was far from the most hard working or the most intelligent student that year. He was simply a person who spent all his time doing perfectly in his average difficulty classes and tests. The truly intelligent and hard working students spent their time taking college level classes, actual courses at colleges, doing outside research and so on. That valedictorian will do well in college and afterwards but he won't be winning a nobel prize. One of the others might.
Christ, did you fail out of CS or something? It's called a hash map, constant time no matter how many ips you have stored as long as you got enough ram. For a million, a small number in computer terms, a paltry 10mb or so is all you'll need.
When did I ever say the electricity would be free? Do you get your gas for free? There is still amazing concept called charging people for things, you may wish to look it up. It's also amazing how quickly people will set things up if they make money from it, like all those ATMs everywhere that the store owners get a cut of the fees from.
Stop making assumptions about the availability and widespread nature of human kindness.
I never id, you're the one trying to do that.
We do not all live in cities, nor are all people (or corporate entities) going to go through the hassle of retrofitting their buildings or roads so that your electric car works.
An electric car is still a fucking car, roads stay the same...are you really that much of an idiot? Actually those living in cities would have the MOST difficulty with electric cars since they'd have much more difficulty in charging their cars at night. There is also of course no need for everyone to do anything but simply for enough people to do it.
NASA and the FAA have been working on a small airport system for years to try and replace the massive hub traffic problems they encounter currently.
The hub system costs less which is why it's used. This matters why exactly?
There have been viable systems for cars that drive themselves. But the infrastructure is not there, and the cost to overhaul it is astronomical (as in, more money than we can reasonably assume would be available for the majority of state and country governments).
This matters why exactly? Frankly, I'd guess the costs of such a system would be more than the GDP of the US for a decade. The technology is not there unless you want something horribly expensive (as in an order of magnitude more expensive than the average car) or prone to catastrophic failures (300 car pileups due to hardware failures in the road and lack of proper sensors in the car itself).
When did I ever say it would be free? Is gas free right now? Is the concept of charging people for something that amazing to you?
I disagree. Existing power grids can take a lot more load as long as it's off-peak.
Gas stations are everywhere and so you'd need to overhaul every neighborhood. Running new massive cable to them would be a huge undertaking due to the sheer amount of current on each one and the extra requirements that'd probably have.
And that's going to be peak load which means a lot more new power stations, upgrading almost all the substations and so on. None of which will be used 70% of the time but it's that 30 minute time when everything is on that's the killer.
You're making contradictory assumptions. You can't claim that rapid charging is only for long distance trips and then claim that the 99% of commuters on highways will need to use it.
The only people who need a quick recharge are those going more than 500 miles at once with no long stops. If they stop to sleep then that's 10 hours to recharge at a hotel/motel. If they get to their destination same thing. If they stop to eat same thing. If the car isn't driving it can be charging.
With some rare exception even long distance trips are generally less than 500 miles one way and probably even both ways.
It's silly to take a system designed for gasoline and apply it to electric cars with no consideration for the inherent differences. Unlike gasoline electricity is everywhere. Every street, building, house and apartment has a gigantic ever refilling storage tank of it. You don't need to have special locations with giant underground tanks and tanker trunks to deal with it.
- burn more natural gas or coal. In North America we burn copious amounts of that already to generate electricity. But then again,I'll stick with my gasoline engine if its going to come to that. As a bonus, in this case it is more wasteful to power our electric cars this way. We would be better of fueling our cars directly with natural gas. We would save the energy lost converting to electricity. Coal....could be complicated.
No, we wouldn't save any energy. That's the whole point. Fossil fuel car engines are horribly inefficient. Giant immobile multi-stage power generators aren't nearly as bad. And making, transferring and using electricity is bloody perpetual motion compared to those. That's not even getting into how much better pollution control measures can be when mass isn't a factor.
A gas car engine transfers around 25% of the energy of the gas it burns into the wheels. Most of the rest is lost as heat.
A modern natural gas generator is up to I think 60% efficient in generating electricity. Even the really old ones can get up to 35% I think. Electric grid, battery charging and battery discharging is say 85-90% efficient altogether. Electric engine is around 90% efficient in terms of energy to wheels. Altogether you end up using nearly half as much energy as a gas powered car and even at worst you still use a bit less energy.
- innovate - find new power sources. I hope we do this too. Although the next big breakthrough could happen tomorrow, this will probably also take a lot of time and money.
It's called nuclear, it'll be ready as soon as people stop protesting.
It weights 50lbs, you're not going to move it around your house at will unless you shove some wheels on it. Then you have to drag your monitor, find a flat place for the keyboard, plug all the 20 cables back in and so on. There's a handle I'm guessing so you can move it around at all without spending the next week with ice on your back.
Mainly because they don't look as nice.
That said, a car accident has a massive amount of energy involved even at low speeds. That energy has to go somewhere. In a new car the energy goes into destroying the vehicle or parts of it. In an old car the energy goes into throwing the driver around. Essentially, at some people people decided that losing a car is preferably to losing their life or suffering life long disability.
Reading comprehension, apparently you should learn some. See those three words "in some ways"? Yeah they matter a lot.
I said HDFS is irrelevant to Hadoop as in it's not a vital part of it or as in it's not required because it can be replaced and quite often in.
Hadoop is not really a file system or rather as you found out it doesn't make a good one. It's a framework for doing a certain type of parallel computing (map reduce) on very large amounts of data. There's a filesystem (hdfs) in there but it's pretty much designed for running such parallel jobs rather than being a clustered NAS. The filesystem is in some ways even irrelevant as there's actually support for various filesystems (Amazon S3, etc.).