Another thing which makes Time Machine so cool is that it is hooked into the filesystem at a low level. Rather than having to inspect the entire directory tree rsync-style, Time Machine uses the FSEvents interface to stay informed of filesystem changes. FSEvents isn't perfect (it actually only records when a directory's contents have changed) but it beats rsync-ish traversal any day.
In my opinion, without such a method for watching FS changes as they occur (or later, from a log), any hackish solution will fall far short of Time Machine's performance.
Three hundred million Ameribucks should be enough to drive some piles, hook up to the steam plant across the street, AND design and install a proper roof.
It should be, but it is not, because Frank Fucking Gehry had a vision: yet another monstrosity that looks like a scrap heap welded together during an episode of Junkyard Wars.
He is a self-absorbed sculptor whose favorite medium is buildings. MIT has recently made the transition into having a bullshit, weak-headed administration, capable of being held rapt by shiny objects. Throw in $300M and a few hours of hand-waving, and you got yourself one hell of an eyesore (a leaky one, at that).
In Turing's case, the torture which propelled him to suicide was Britain's forced chemical treatment of his "condition", homosexuality. He had the choice between prison, and a program of estrogen therapy.
A combination of persistent RAM with a firmware-based OS/app suite could get us there. By the time the OS gets big enough to be very useful, though, we will begin to see the cracks with this approach too.
Modern OSes don't trust what the BIOS tells them, due to older BIOSes that can't be trusted. With this fact in mind, you can imagine how getting the BIOS mostly out of the way can gain a few seconds at boot time without losing anything practical.
I'm not sure she'd wave a fart in your direction for six figures. HP gave her $21,000,000 just to get rid of her... just before losing $21M more to her in court.
My only hope is that she brings the same quality of guidance and direction to Fox News as she did to HP.
If you're referring to the fact that observing the quantum register will destroy its state, you're right. But the part you're not mentioning is that there is a high probability you just observed the right answer. Measure it a few times -- or a few hundred or thousand, hell with it, that part's still O(1) -- and you can poll for the right key.
If you think that trying to crack the key with which a file was encrypted will re-encode the file with a different key, I can't help you there.
Because, in theory, quantum superposition can be exploited to provide keys of arbitrary length; since each qubit can be 0 and 1 simultaneously, put enough qubits together and you ALWAYS have the right key.
The quantum chips TFA references are not designed around this principle, so this is all a little unrelated, but there is a reason why people expect widespread quantum computing to bring about the end of the useful life of today's ciphers.
I would like to apologize for making you read a sentence to figure out what the headline meant. To the best of our abilities, we shall not let this unfortunate occurrence happen again.
Project Athena's goal was, roughly speaking, to allow any user to walk up to any machine and log in, and be greeted with their files, apps, customizations, etc. This involved the creation of a windowing system which supported network operation (X Window System), centralized authentication service (Kerberos), centralized directory service (Hesiod), and also the integration of a networked file system (first NFS, then AFS).
This is a simplification and Athena has grown up quite a bit in the two dozen or so years it's been around, but that's it in a nutshell.
Read up on common-rail diesel engines. The assertion that diesel == dirty is no longer valid, and in a couple of years we're going to be seeing common-rail diesels in America (the Accord will be first, IIRC). I expect them to give gasoline engines a real run for their money. I also expect America as a whole to make the worst decisions possible.
Yeah, we'd all like to be driving muscle cars that got 100mpg with zero emissions, but unfortunately we live on planet Earth, subject to reality and all the engineering tradeoffs it entails. If you care about gas mileage, truly care about it, you're going to have to leave that Dodge Charger on the lot. Same with these fine, pedal-to-the-metal CPUs.
Only a fool would specify an Opteron or a Xeon in a power-critical application. You might as well compare fuel consumption among a group of muscle cars; the very act of comparison indicates that you missed the point entirely.
I think they should totally make a better start page. Just remember how well that worked for Mozilla back when it was Netscape. Leave image resizing up to MS Paint and the professionals who use it.
Slashdot Mirror
Unless you can produce a link or some debugger output or something, I'm gonna go ahead and trust ArsTechnica more than I trust you.
Another thing which makes Time Machine so cool is that it is hooked into the filesystem at a low level. Rather than having to inspect the entire directory tree rsync-style, Time Machine uses the FSEvents interface to stay informed of filesystem changes. FSEvents isn't perfect (it actually only records when a directory's contents have changed) but it beats rsync-ish traversal any day.
In my opinion, without such a method for watching FS changes as they occur (or later, from a log), any hackish solution will fall far short of Time Machine's performance.
Three hundred million Ameribucks should be enough to drive some piles, hook up to the steam plant across the street, AND design and install a proper roof.
It should be, but it is not, because Frank Fucking Gehry had a vision: yet another monstrosity that looks like a scrap heap welded together during an episode of Junkyard Wars.
He is a self-absorbed sculptor whose favorite medium is buildings. MIT has recently made the transition into having a bullshit, weak-headed administration, capable of being held rapt by shiny objects. Throw in $300M and a few hours of hand-waving, and you got yourself one hell of an eyesore (a leaky one, at that).
Perhaps the following metaphor is not the most effective, when discussing the field of medicine:
We need to give wild ducks the opportunity to emerge and quack their way to success.
In Turing's case, the torture which propelled him to suicide was Britain's forced chemical treatment of his "condition", homosexuality. He had the choice between prison, and a program of estrogen therapy.
A combination of persistent RAM with a firmware-based OS/app suite could get us there. By the time the OS gets big enough to be very useful, though, we will begin to see the cracks with this approach too.
Are they going straight for Apple? Keeping track of meals is one of the flagship features of the iPhone.
Wanna know what you just ate? Look at the smudges on the screen...
Modern OSes don't trust what the BIOS tells them, due to older BIOSes that can't be trusted. With this fact in mind, you can imagine how getting the BIOS mostly out of the way can gain a few seconds at boot time without losing anything practical.
Can I blame her for the HP-33S? Because I'd really like to pin that abomination on someone I already hate.
I'm not sure she'd wave a fart in your direction for six figures. HP gave her $21,000,000 just to get rid of her... just before losing $21M more to her in court.
My only hope is that she brings the same quality of guidance and direction to Fox News as she did to HP.
Great, thank Christ someone knows what's going on here. I'm an analog electrical engineer working on web applications.
If you're referring to the fact that observing the quantum register will destroy its state, you're right. But the part you're not mentioning is that there is a high probability you just observed the right answer. Measure it a few times -- or a few hundred or thousand, hell with it, that part's still O(1) -- and you can poll for the right key.
If you think that trying to crack the key with which a file was encrypted will re-encode the file with a different key, I can't help you there.
Because, in theory, quantum superposition can be exploited to provide keys of arbitrary length; since each qubit can be 0 and 1 simultaneously, put enough qubits together and you ALWAYS have the right key.
The quantum chips TFA references are not designed around this principle, so this is all a little unrelated, but there is a reason why people expect widespread quantum computing to bring about the end of the useful life of today's ciphers.
I would like to apologize for making you read a sentence to figure out what the headline meant. To the best of our abilities, we shall not let this unfortunate occurrence happen again.
Sincerely,
krog
...before I replace my Camel Book, 2nd Edition. It hasn't worked out as well as I thought it might, 5 or 6 years ago.
I read wikipedia for the articles.
Project Athena's goal was, roughly speaking, to allow any user to walk up to any machine and log in, and be greeted with their files, apps, customizations, etc. This involved the creation of a windowing system which supported network operation (X Window System), centralized authentication service (Kerberos), centralized directory service (Hesiod), and also the integration of a networked file system (first NFS, then AFS).
This is a simplification and Athena has grown up quite a bit in the two dozen or so years it's been around, but that's it in a nutshell.
In 1989, bands like Metallica were already pissing and moaning about tape traders.
Jeopardizing one's employment by publicly disagreeing with the immoral practices of one's employer doesn't sound very empty to me.
Sure, he might not have said these things back when Pretty Hate Machine was about to be released, but that doesn't negate what he's saying.
Read up on common-rail diesel engines. The assertion that diesel == dirty is no longer valid, and in a couple of years we're going to be seeing common-rail diesels in America (the Accord will be first, IIRC). I expect them to give gasoline engines a real run for their money. I also expect America as a whole to make the worst decisions possible.
Yeah, we'd all like to be driving muscle cars that got 100mpg with zero emissions, but unfortunately we live on planet Earth, subject to reality and all the engineering tradeoffs it entails. If you care about gas mileage, truly care about it, you're going to have to leave that Dodge Charger on the lot. Same with these fine, pedal-to-the-metal CPUs.
Only a fool would specify an Opteron or a Xeon in a power-critical application. You might as well compare fuel consumption among a group of muscle cars; the very act of comparison indicates that you missed the point entirely.
I say "mixtape" a lot even though I haven't made one on tape in ten years... "Mix CD" and "playlist" just sound retarded.
I think they should totally make a better start page. Just remember how well that worked for Mozilla back when it was Netscape. Leave image resizing up to MS Paint and the professionals who use it.