I do wonder why more effort doesn't seem to be put into using Technology to help save money.
Sure, take your 4 day week. Does that mean the kids can't be given a website to go to, with their on personal login, that has a bunch of weekly tests and exams for them to do, that they can spend friday doing? Have set times, make them sit the "exam" at the same time as everyone else, effectively making it a "school day" without the school.
Hell, that's not education! At the very most is "training on how to pass an exam".
Does not result in judgement/rationing/critical thinking abilities, does not result in useful skills, does not result in active knowledge... direct experience (the source of so much learning by mistakes) is missing.
U.S. spending on public education per pupil is the 7th highest in the world (PDF warning), and above the OECD average as a percentage of GDP. We're spending more than enough money on education. As OP said, the problem is too much administrative overhead.
Let me rephrase: you are wasting money in the administration of the education and not enough on the education itself. And when budget-cutting is needed, you choose to cut from education (the benefit) instead of administration (cost).
It was bad enough when all we had to worry about was breaking a controller when a game made us angry. Now the game will know we're angry on its own and react accordingly?
Nothing to worry... not until they'll supplement the console with self-defense capabilities. Bonus points for "preemptive strikes" refinements in the AI.
MD5 should be deprecated, but the collision attack only invalidates signatures;
Because you are not "decrypting" the password, finding a collision will be an attack for passwords as well - fortunately, as others pointed out, it's currently still 2^120.
and the dictionary attacks are defeated by salt
I argue that using a "salting for passwords" it's useless (doesn't do harm, but doesn't bring in too much good either) . Unlike signatures/message digests, the checksum is not made public (the passwords - or their checksum - are stored in a "secure place") and the attacker usually has longer time for cracking a password - until you change it.
If the attacker got a checksum of a password, it means that the attacker broke your "secure place" - what warranties do you have that the attacker didn't get your salt as well?
The problem with salting: transfer the matter into "security by obscurity".
If the repo of you passwords leaks, one can assume the salt grains would leak too. Then you are not better than having the hashed password alone to attack.
There was a time, way back, when geologists would have presented this kind of finding and said:
"We finally have a map of how the ice in Antarctica moves. We don't quite know exactly why it moves the way it does, but at least now we know some of the questions we should ask ourselves."
Instead we get scaremongering drivel along the lines of: "That's critical knowledge for predicting future sea level rise. It means that if we lose ice at the coasts from the warming ocean, we open the tap to massive amounts of ice in the interior."
No, but he could be a replicant and get blown to bits by Deckard. I could support that.
Only if it happens in the first 30 seconds of the movie, before the title gets to roll in. Otherwise.. thanks, but no, thanks... wouldn't like to see bieber face all the movie. Not even if it is repeatedly blown to bits.
And how the hell can we affect the entire Milky Way?
Unless the "aliens" are sick of our TV and Radio broadcasts.
Though, that would require the aliens planet to be within 100 light years, which is improbable.
Well, I think is too late already.
TFS:
Of course, ETI might just be an aggressive race, so like Stephen Hawking's recent warning, the authors of the study suggest that perhaps we shouldn't transmit too much information into space.
I wonder how many lawyers have already figured out that any suspect that has evidence brought against them, evidence obtained with this technology, already has in hand an admission by the authorities that the suspect was subjected to x-rays against their will? Hell, even a probable cause statement for a warrant would require the admission of use of this technology.
There's no risk for having the lawyers sticking their noses in. The PATRIOT act and Guantanamo are still alive, you know?
New hardware has bought us the ability to use managed code for most (not all) software. Isn't this much better than expecting every programmer to perfectly manage his memory every time? Just wait a couple more years and we won't be feeling the hardware pinch even on phones.
Hmmm... I think you aren't aware of what seems to be a law of the nature: "When a new generation of hardware breaks the bottlenecks of memory/speed, it takes almost no time for the next generation of incompetent programmers to reinstate them".
Examples:
a. "640 kB should be enough for everybody" - said once the "lead architect" who's last major project was Vista
b. "The art of computer programming" is taught on MiX and it's a jewel on concerning the algo complexity analysis. Nowadays, very few programmers feel the need to even choose the right basic algorithms for the code they are scribbling by the fucktonne.
Personally I would say that C++ is a lot more cryptic than Java, even though I'm very familiar with C.
But for native coding I would say that it may be useful to look at other languages too - like Fortran.
Doing a fair bit of Fortran in the past, I'm seeing no reason to do it if you come from a C++ background - the compiled C++ will be equally fast as a compiled Fortran that expresses the same computations.
The problem here is that mixing different languages is a bit difficult.
It would be great if you could do UI stuff in some high-level language like Java, C# or VB and do the heavy problem-solving stuff in ASM, C/C++ or Fortran.
Spot on! The very reason I started to learn Java about 12 years ago: the UI stuff. Boy, even now I can't be bothered again with MFC or widgets.
It's not impossible to mix languages, but it's certainly not made easy.
For my own experience: JNI takes about 1-2 days to understand and 1-2 months to adjust your mind and habits in using it. I'd say, not that hard either. (see also JNA)
Try writing any large multi-threaded, networked program in C++ and spend as much time on the configuration management as when doing the same in Java.
For writing: things slowly change, see Boost.
For makefiles or whatnot: if your project is indeed complex, the economy of time will still show a very small percentage being directed in makefiles (as you noted, with most of the time will be spent in compilation).
Other than that, yes, I agree, C++ doesn't yet have the edge of cross-platform portability (and, at the rate the C++ standardization committee works, I lost hopes that I'll see it during my lifetime. Maybe my grandchildren?)
c. Abbott and Turnbull are complete idiots when it comes to technology, so much so they make Conroy look like a genius and as an IT&T worker in Oz, I dont have kind things to say about Conroy.
Except the fact that he's quite a bulldog when it comes to defending NBN, neither can I find kind things to say about him.
Being a "mainframe guy", I can't help but laugh at how PCs were brought in to break the IT stranglehold, and now after uncountabillions have been spent on virus protection and remediation (with companies still not blocking most web sites), the pendulum is now swinging back in the direction of centralized control.
I can't help but smile at how the iPads (or any mobile devices offered on "a data plan" by telecoms) are considered as "not locked down"; also smile in the anticipation of the moment in which the only choice will be "there is a cloud supported App for that". (what is the WebOS for? why wouldn't the corporations attempt to feed you strictly via a controlled channel?).
I really can't understand why the parent is (currently) modded flamebait.
In fact, I don't quite understand why TFS creates a false dilemma when saying: or the theory that the moon use to be a molten ocean is wrong."
Because TFA offers as alternative:
... or that this sample does not represent a crystallisation product of the original magma ocean.
Which, in my mind, is different form saying "there was no magma ocean", because it lets open the possibility of "what if the rock is the crystallization product of a younger magma ocean and reached the moon from elsewhere?"
My grandpa got several patents in the 1940's, back when a patent actually meant something other than a method and system for trolls to screw over real innovators:-P FU USPO
I don't quite understand why some achievement of one's ancestors is a reason to make one proud.
Slashdot Mirror
Real Alternative.
Damn'd. Now RealNetworks will confiscate all the /. servers. See what have you done?
I do wonder why more effort doesn't seem to be put into using Technology to help save money.
Sure, take your 4 day week. Does that mean the kids can't be given a website to go to, with their on personal login, that has a bunch of weekly tests and exams for them to do, that they can spend friday doing? Have set times, make them sit the "exam" at the same time as everyone else, effectively making it a "school day" without the school.
Hell, that's not education! At the very most is "training on how to pass an exam".
Does not result in judgement/rationing/critical thinking abilities, does not result in useful skills, does not result in active knowledge... direct experience (the source of so much learning by mistakes) is missing.
U.S. spending on public education per pupil is the 7th highest in the world (PDF warning), and above the OECD average as a percentage of GDP. We're spending more than enough money on education. As OP said, the problem is too much administrative overhead.
Let me rephrase: you are wasting money in the administration of the education and not enough on the education itself. And when budget-cutting is needed, you choose to cut from education (the benefit) instead of administration (cost).
Is the rewording correct?
It was bad enough when all we had to worry about was breaking a controller when a game made us angry. Now the game will know we're angry on its own and react accordingly?
Nothing to worry... not until they'll supplement the console with self-defense capabilities. Bonus points for "preemptive strikes" refinements in the AI.
MD5 should be deprecated, but the collision attack only invalidates signatures;
Because you are not "decrypting" the password, finding a collision will be an attack for passwords as well - fortunately, as others pointed out, it's currently still 2^120.
and the dictionary attacks are defeated by salt
I argue that using a "salting for passwords" it's useless (doesn't do harm, but doesn't bring in too much good either) . Unlike signatures/message digests, the checksum is not made public (the passwords - or their checksum - are stored in a "secure place") and the attacker usually has longer time for cracking a password - until you change it.
If the attacker got a checksum of a password, it means that the attacker broke your "secure place" - what warranties do you have that the attacker didn't get your salt as well?
Well, yes?
The problem with salting: transfer the matter into "security by obscurity".
If the repo of you passwords leaks, one can assume the salt grains would leak too. Then you are not better than having the hashed password alone to attack.
A collision attack exists that can find collisions within seconds on a computer with a 2.6Ghz Pentium4 processor (complexity of 2^24.1) Does salting garbage result in something edible?
Or is it: Immediate action needed. LDNers cannot have another evening like last night tonight. BBM clearly helping rioters outfox Police. Suspend it.
There was a time, way back, when geologists would have presented this kind of finding and said: "We finally have a map of how the ice in Antarctica moves. We don't quite know exactly why it moves the way it does, but at least now we know some of the questions we should ask ourselves." Instead we get scaremongering drivel along the lines of: "That's critical knowledge for predicting future sea level rise. It means that if we lose ice at the coasts from the warming ocean, we open the tap to massive amounts of ice in the interior."
Did it scare you?
Even more, the common belief was that it walked across the ground (not along)
Awww. How about a whole line of Bieber replicants, and an entire movie dedicated to all the gruesome ways in which they can be *ahem* retired?
(whisper) "The horror... the horror..."
And cast Justin Bieber as Deckard?
No, but he could be a replicant and get blown to bits by Deckard. I could support that.
Only if it happens in the first 30 seconds of the movie, before the title gets to roll in.
Otherwise.. thanks, but no, thanks... wouldn't like to see bieber face all the movie. Not even if it is repeatedly blown to bits.
It already happened - God arrived ...
but humanity lately is turning out to be a bit of a lost cause!
Indeed.
With MAFIAA so dead-set on pirates, no wonder the global warming. But I think FSM still loves us.
And how the hell can we affect the entire Milky Way?
Unless the "aliens" are sick of our TV and Radio broadcasts. Though, that would require the aliens planet to be within 100 light years, which is improbable.
Well, I think is too late already.
TFS:
Of course, ETI might just be an aggressive race, so like Stephen Hawking's recent warning, the authors of the study suggest that perhaps we shouldn't transmit too much information into space.
As I said, is too late; even FBI can't help itself to keep quiet
On the "bright side": with such a scenario, who the hell will need terrorists to keep the populace in check?
I wonder how many lawyers have already figured out that any suspect that has evidence brought against them, evidence obtained with this technology, already has in hand an admission by the authorities that the suspect was subjected to x-rays against their will? Hell, even a probable cause statement for a warrant would require the admission of use of this technology.
There's no risk for having the lawyers sticking their noses in. The PATRIOT act and Guantanamo are still alive, you know?
There are no checked exceptions in C++. There are exception specifications but they were a controversial idea that got deprecated in C++11.
FTFY.
Java seems to have a way doing the opposite.
New hardware has bought us the ability to use managed code for most (not all) software. Isn't this much better than expecting every programmer to perfectly manage his memory every time? Just wait a couple more years and we won't be feeling the hardware pinch even on phones.
Hmmm... I think you aren't aware of what seems to be a law of the nature: "When a new generation of hardware breaks the bottlenecks of memory/speed, it takes almost no time for the next generation of incompetent programmers to reinstate them".
Examples:
a. "640 kB should be enough for everybody" - said once the "lead architect" who's last major project was Vista
b. "The art of computer programming" is taught on MiX and it's a jewel on concerning the algo complexity analysis. Nowadays, very few programmers feel the need to even choose the right basic algorithms for the code they are scribbling by the fucktonne.
Personally I would say that C++ is a lot more cryptic than Java, even though I'm very familiar with C.
But for native coding I would say that it may be useful to look at other languages too - like Fortran.
Doing a fair bit of Fortran in the past, I'm seeing no reason to do it if you come from a C++ background - the compiled C++ will be equally fast as a compiled Fortran that expresses the same computations.
The problem here is that mixing different languages is a bit difficult. It would be great if you could do UI stuff in some high-level language like Java, C# or VB and do the heavy problem-solving stuff in ASM, C/C++ or Fortran.
Spot on! The very reason I started to learn Java about 12 years ago: the UI stuff. Boy, even now I can't be bothered again with MFC or widgets.
It's not impossible to mix languages, but it's certainly not made easy.
For my own experience: JNI takes about 1-2 days to understand and 1-2 months to adjust your mind and habits in using it. I'd say, not that hard either. (see also JNA)
Try writing any large multi-threaded, networked program in C++ and spend as much time on the configuration management as when doing the same in Java.
For writing: things slowly change, see Boost.
For makefiles or whatnot: if your project is indeed complex, the economy of time will still show a very small percentage being directed in makefiles (as you noted, with most of the time will be spent in compilation).
Other than that, yes, I agree, C++ doesn't yet have the edge of cross-platform portability (and, at the rate the C++ standardization committee works, I lost hopes that I'll see it during my lifetime. Maybe my grandchildren?)
c. Abbott and Turnbull are complete idiots when it comes to technology, so much so they make Conroy look like a genius and as an IT&T worker in Oz, I dont have kind things to say about Conroy.
Except the fact that he's quite a bulldog when it comes to defending NBN, neither can I find kind things to say about him.
(No, I didn't RTFA.)
Being a "mainframe guy", I can't help but laugh at how PCs were brought in to break the IT stranglehold, and now after uncountabillions have been spent on virus protection and remediation (with companies still not blocking most web sites), the pendulum is now swinging back in the direction of centralized control.
I can't help but smile at how the iPads (or any mobile devices offered on "a data plan" by telecoms) are considered as "not locked down"; also smile in the anticipation of the moment in which the only choice will be "there is a cloud supported App for that". (what is the WebOS for? why wouldn't the corporations attempt to feed you strictly via a controlled channel?).
Which, in my mind, is different form saying "there was no magma ocean", because it lets open the possibility of "what if the rock is the crystallization product of a younger magma ocean and reached the moon from elsewhere?"
If I'm wrong, where/what am I mistaking?
You mean like this? http://www.pcauthority.com.au/News/261762,typing-to-power-laptops.aspx
Is it any good for, say, touch screens?
My grandpa got several patents in the 1940's, back when a patent actually meant something other than a method and system for trolls to screw over real innovators :-P FU USPO
I don't quite understand why some achievement of one's ancestors is a reason to make one proud.
Somebody said it better, just Google for "ancestry Samuel Butler"