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Comment You misunderstand PhD (Score 0) 135

You do not take a PHD because you prepare for a job. You take it because youa re passionate for the subject and might hope to continue the subject. if you think a PhD is to prepare for an job, or even education in general at high level, you got it wrong. Anyway i disagree about not being a good preparation either : the autonomy and the effort needed to do a PhD "over prepare" for practically any job except a few % out there.
Google

Anyone Can Buy Google Glass April 15 167

An anonymous reader writes "Starting at 9 a.m. ET on April 15 anyone in the US will be able to buy Google Glass for one day. From the article: 'This is the first time the device has been available to the general public. So far, the face-mounted computers have been sold only to Google "Explorers," the company's name for early adopters. At first only developers could buy Glass, but Google slowly expanded the program to include regular people. Some were hand-picked, others applied to be Explorers through Google contests by sharing what cool projects they would do if they had Glass.'"

Submission + - NSA said to have used Heartbleed bug for years (bloomberg.com)

grub writes: The U.S. National Security Agency knew for at least two years about a flaw in the way that many websites send sensitive information, now dubbed the Heartbleed bug, and regularly used it to gather critical intelligence, two people familiar with the matter said.

The NSA’s decision to keep the bug secret in pursuit of national security interests threatens to renew the rancorous debate over the role of the government’s top computer experts.

Comment Re:Its not nothing (Score 1) 612

If physicists don't have a proper answer to "Why is there something rather than nothing" then they should stop pretending they do by the deceit of changing the definition of "nothing".

The issue of whether anyone has a "proper" answer -- indeed, if there is a "proper" answer -- turns on the ambiguity of the word "why". We use that word in three very different senses.

When we ask, "why is the sky blue?", we are asking "by what lower-level phenomena is the sky seen as blue?" We want a causal sequence of explanations that is static (or very short duration) in time and varies over the reductionist depth of phenomena: photons are scattered by air molecules, some of them enter your eye, trigger certain receptors in the retina, this is processed by the nervous system causing a sensation that your brain has been culturally trained to associate with the symbol "blue".

When we ask, "why did the Challenger explode?", we are asking "by what causal chain of events, one after the other, did the Challenger explode?" We want a causal sequence of explanations that extends over time and is fairly static in reductionist depth: politics prompted a launch in cold weather, cold weather caused the O-ring to warp, the warped O-ring caused hot gas to leak, boom. We want a time sequence that (in this instance) stays at the level of everyday experience, doesn't go in to the quantum mechanics of the O-ring or the grand historical narrative of humanity's existence.

When we ask, "why did Alice go the dance with Bob?", we are asking "what motives and values prompted Alice's decision?" We want an explanation of the desires and actions of intelligent agents, not a story about the atoms that make up her body.

When we ask "why is there something rather than nothing?", some people are looking for "God did it" -- the third type of answer. But there can't be an intelligent agent before there is something, so the question in that sense is contradictory and meaningless.

Some people are looking for the second type of answer: they want some cosmological causal chain of events as to how space and energy came to be. But any causal chain of events would be a thing, not nothing, so again the question in that sense is contradictory and meaningless.

What we have here is a proposed answer in the first sense, lower-level phenomena.

If you're looking for cause-over-time or motive as an answer to "why is there something rather than nothing", you've fallen into a linguistic trap around the ambiguity of the word "why".

Comment Actually not true (Score 1) 292

If you watch the last century, we added limitation to the world instead of removing them. Back to newton : infinite speed possible infinite acceleration possible and while the greek had a concept of the non divisible (atoms), there was no theoretical "limit" on isntrumentation ,it was still thought you could transmute stuff into other other stuff in the middle age. And the unvierse could go on forever. Nowadays we know that inifnite speed is not possible, infinite acceleration is not possible, there is a limit on what you can measure (uncertaintly principle), transmutation is an energy expansive process, the universe will wind down forever, and there is a maximum limit on how much energy can be extracted, and do not get me started on "you can't win , you can't get out of the game etc...". From all point of view, we discovered new phenomenon, but all those resulted in imposing limitation on everything everywhere. We have discovered new phenomena, but each refined our understanding and added new limitation on what is possible. I'll grant you we have open point as we cannot go smoothly from infinitely small to infinitely big.


Although I would not bet the house on it, I contend that it is entirely possible that we have discovered the rough outline of most laws which drive the universe, and that warp drive and worm hole are stuff of the imagination which have no place whatsoever here. And that in future we might discover refinement and new phenomenon, but none which breaks utterly all those intrinsic limitation, they might even impose on us even *more* limitation on what is doable.

Comment Re:Whatever you may think ... (Score 5, Informative) 447


From the proof-of-concept page I mentioned above.

Conclusion

It is quite obvious in light of the recent revelations from Snowden that this weakness was introduced by purpose by the NSA. It is very elegant and leaks its complete internal state in only 32 bytes of output, which is very impressive knowing it takes 32 bytes of input as a seed.

Here is the Github repo for the PoC code.

This PRNG is not the NSA making a crypto system stronger ala DES, it's a backdoor.

Comment Re:Whatever you may think ... (Score 4, Informative) 447


RSA has denied having knowledge of the backdoor, says NSA tricked them, and has never denied the $10M payout. Some of Snowden's leaks mention it.
Reuters has a summary

proof-of-concept backdoor with a link to the github repo.

None of that is a smoking gun, but there is enough smoke to tell me there is a fire.

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