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Comment Re:Some of us know how to use PGP in a real client (Score 2) 26

Yep, that was what I was hinting at -- of course one can not securely interoperate with other services using plain old STMP, but I hoped they would add secure link between any two of their internal customers, with plausible deniability that they ever communicated.

As to "innocence" of metadata, a required (and educational!) read that I am sure you have seen, but others might have not:

Paul B.

Submission + - Google finds D-Wave machine to be 10^8 times faster than simulated annealing (

An anonymous reader writes: From Google Research blog:
We found that for problem instances involving nearly 1000 binary variables, quantum annealing significantly outperforms its classical counterpart, simulated annealing. It is more than 10^8 times faster than simulated annealing running on a single core. We also compared the quantum hardware to another algorithm called Quantum Monte Carlo. This is a method designed to emulate the behavior of quantum systems, but it runs on conventional processors. While the scaling with size between these two methods is comparable, they are again separated by a large factor sometimes as high as 10^8.

Comment I doubt it is for *chips* themselves (Score 3, Interesting) 90

TFA is a bit light on details, but (having heard of GaN before), it is good at handling large voltages/currents, and they are probably talking about more efficient power supplies (saving 20%, apparently), not replacing Si in logic chips. Or maybe integrating power conversion onto processor die itself, but the latter is still made of good old CMOS. Currently, from what I've heard, a good chunk of pins on your processor are used to supply power -- if you think of it, 30W processor with 3V bias needs to get 10A of current.

Paul B.

Comment Re:Except if you pay with silver quarters... (Score 1) 940

Agreed, I think that we are saying the same thing -- measured in time or in silver prices stay the same (after all, someone has to spend time to mine that silver).

The real question is, where did productivity gains go? Probably "regressively redistributed" to top 1% and away from you and me... Too bad!

Paul B.

Comment Whatever means necessary? (Score 4, Informative) 818

Ever heard of Corvin Amendment (approved by Lincoln!) which would preserve slavery in states where it was legal?

Basically it was offer to the South to keeep their slaves, if only they would not leave the Union!

They still fought the war to leave, so it was not "all about slavery", more about tariffs.

Paul B.

Comment Re:Explanation seems to violate charge conservatio (Score 4, Informative) 265

Well, CRT face is (weakly) grounded, so e- kinetic energy can excite atom for subsequent photon emission, but its charge will happily leak into the ground.

There is no "ground" anywhere next to flying spacecraft!

Actually, on reading the preprint, yes, electrons come from under the Fermi level, get lost in the process and graphene foam (or, spacecraft carrying it) *will* become charged -- it was pointed out in the article as well, but I did miss it on quick read.

AC below actually paints a rather dramatic picture of what can happen next! :)

Paul B.

Comment Re:Don't single out EPA (Score 2) 355

Medical studies in particular: you really don't want the public to have access to the private medical data which is used in medical studies.

I can not see how this is a valid argument -- of course such data should be anonymized and not traceable to an *individual* patient (this is where privacy kicks in), but it is done in publicly published medical research anyway ("Patient A [not Sam Smith!] was responding to treatment... ").

As to temperature data -- if there is suspicion that it is tainted by "local political concerns" -- should we even consider it to be valid *scientific* data?

Paul B.

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