Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Comment Ha! I had the same thing happen to me. (Score 5, Interesting) 246

I owned a small consulting company in the late '90s and we were hired to do some work for a VPN vendor. We had to sign a rather onerous NDA and then they stiffed us on payment after six months' work and proceeded to ship what we had built anyway. The "separation" was acrimonious and involved court just so we could get paid.

Two years later, the president of the company contacts me begging for archival copies of what we'd produced, as they suffered some sort of catastrophic event and had lost a lot of source code.

I rather gleefully told him that (a) I had to take him to court to get him to pay me for shipping our work last time around, and (b) as per the NDA that they made a serious issue of in court, we had dutifully wiped everything we had ever worked on for them, and good luck.

I smiled for about a month after that.

Comment Re: "quantum" computing (Score 1) 45

"Using non-local quantum entanglement to instantaneously transmit information indeed would be faster-than-light."

Yes, and entanglement can't do that as I tried to explain in my earlier post.

You do not transport information but quantum information with entanglement. They are as far removed from each other as Schroedinger's cat from any pet you've ever owned.

BTW tachyon are hypothetical faster than light particles. Of course you could signal into the past if such a resource existed and could be technologically controlled.

And once again, nature has no concept of "instantaneous" it's a human approximation to a constant frame without relativistic speeds. Whenever a physicist uses this word in connection with entanglement its an unscientific shortcut that has no real physical meaning.

I'd highly recommend you to draw up some Minkowski diagrams, until this clicks for you.

Understanding the nature of quantum information is a bit more tricky, because it all comes down to how quantum correlations will look like perfect random noise until you get the information from a corresponding measurement on entangled systems. The way this is experimentally tested is via Bell's inequality violations.

Bell was much later than Einstein. Bell essentially codified the latter's reservations and wanted to prove Einstein right, but nature did not cooperate.

BTW the only quantum spookiness that QM allows are Quantum Erasers.

And please note, that all these oddities are not hypothetical but demonstrated in experiments. It's these weird experimental results that have brow beaten physicists into accepting entanglement as a fundamentally non-local phenomenon, against the marked resistance of some of the best and brightest minds like Einstein and Bell.

Comment This. (Score 1) 158

I have close knowledge of one project in which a codebase performs an action using an initial human-supplied table of data, then records the result as either a positive or negative outcome and adds that result back into the table. Then it performs another action based on the table data, records the result as a positive or negative, and adds that back into the table. Over time, of course, the table entries with the highest positive rate rise to the top and influence the actions that are chosen. It's CS101 stuff on a fairly mundane dataset.

But the codebase is hosted on Amazon and it's a marketing-led company, so they went to press with "Our innovative new artificial intelligence system uses a deep machine learning algorithm running on new exascale computing platforms to determine the best course of action to take in each case."

The engineers in the room were not happy about this. The marketing person said, "Don't sell yourself short. You developed a system that records data about what has already happened, remembers it, then makes decisions about what to do next based on what has already happened. I call that artificial intelligence."

One of the engineers shot back with, "When I was in college, we just called that 'computation.'"

Comment Re: "quantum" computing (Score 1) 45

The ERP paradox that you are alluding two was solved by Niels Bohr just two days after Einstein presented it to him.

Quantum Information is fundamentally different than classical Information. A pure quantum information channel that only establishes entanglement does not transport classical information, it just established a quantum correlation. But this correlation can only be confirmed after corresponding classical information over the measured state on one end of the channel reaches the other end.

That classical signal of course obeys relativity and cannot propagate faster than light. Hence causality is preserved.

The common statement, (that many physicist who should know better make as well), that entanglement establishes an instantaneous signalling is grossly wrong. For spacelike separated events, linked via a quantum channel, instantaneous is not even defined. It is completely meaningless as the temporal order is relative to an observer's inertial frame. So I guess I shouldn't say it's grossly wrong, but stick to Pauli's formulation. It's not even wrong, it's worse, it carries no scientific meaning whatsoever.

(BTW I am physicist and dabble in quantum computing).

Comment Credit card chargeback. (Score 4, Informative) 88

Go to your card provider (Visa/MC/Discover/Amex) and tell them to remove the charge because the service was not rendered and/or the charge was improper.

They will.

Once AT&T starts getting a lot of chargebacks, they will do something about it.

I had this sort of thing happen do me years back in NYC with Verizon. I called to cancel, was given a confirmation # and everything, and was still billed again the next month. When called again, furious, the manager I was escalated to said that they could not offer a refund because they did not have that policy. I said I don't care about policy, give me a refund, and he said there was literally no way for him to do that in the system and suggested (of course) that I accept the service for a month, since I'd already paid for it, and then if I didn't want it next month, I could call and cancel [n.b. AGAIN] then.

I hung up on him, dialed Visa, and had them charge it back. Of course THAT got Verizon's attention and a day or two later I was called by retention or some similar department to offer me a discount if I would stay on, along with a lot of apology garbage.

I told them I'd rather eat a bug.

Comment Re: "quantum" computing (Score 2) 45

The hedging in the paper is the typical verbiage that you get with any data driven study.

At any rate, it wouldn't be classical computing in the digital sense but reduce to a mostly analog annealer. The original claim was that the D-Wave machine was essentially a fake, and this has been discredited three ways till Sunday.

They set out to build a quantum annealer and it acts like one. What is unclear is how useful this process will actually be in practice. Quantum speed-ups are not at all guaranteed with this design. That's were the focus should be. Not some rehashed conspiracy theory that D-Wave is faking their hardware.

Comment Re:Scientists and doctors.. (Score 2, Interesting) 293

One good thing about Trump, he's far more likely to decide big pharma needs to be beaten with a stick and forced to make new antibiotics

Trump is of the opinion that vaccines are involved with autism. I don't think he's going to be doing too much to "big pharma".

Which is odd since he is a known germaphobe. One would think he of all people would be interested in both vaccines and new antibiotics.

Comment Re:Illegal product? (Score 0) 179

and this guy's life is ruined. Unconscionable.

Perhaps he shouldn't have been engaged in criminal activity and his life would be just fine.

What's unconscionable is people thinking criminal acts should be defended and one's personable responsibility should never enter into the equation.

Comment Took long enough (Score 2, Insightful) 31

It's been known for years Theranos is nothing but a scam. They have never allowed anyone to try and replicate their results, have never submitted their tests to government scrutiny, have never done anything to show their tests do what they claim they do.

It's a bit late for Arizona to be suing the company now, right when it's about to go bankrupt. At least go after Holmes for the fraud she's been perpetuating all this time because there's little left of the company.

Slashdot Top Deals

If all else fails, lower your standards.

Working...