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Comment Re:Weirdly specific statement (Score 1) 32

The significance of this is Elon Musk, who is the self-driving Uber of dot.com billionaires and is the hero of our times.

Well, I knew Steve Jobs well enough, and have met a few civilian astronauts and a bunch of other rich people. None of the others seem to have done so much for the long-term future of the human race as Musk has in leading the path to more affordable spaceflight.

Comment Re:Sixty Years Ago... (Score 1) 32

Well, it beats making them into the world's most complicated airplanes as with the space shuttle. SpaceX has proven that they can do vertical landings of the first stage intact onto both land and a seagoing barge; after a trip out of the atmosphere and to about 1/5 of orbital velocity but not into orbit. They plan to do a parachute-less vertical landing of the Dragon capsule after a heat-shield re-entry. That turns out to be far less expensive and complicated than a space plane. It does turn out we need a lifting body for much larger vehicles. It still doesn't have to be a plane, though.

We don't need wings.

Comment Re:massive parallel processing=limited application (Score 1) 108

On a 8-core machine, a processor will be placed into a wait queue roughly 7 out of 8 times that it needs access.

You just snuck into your analysis the assumption that every core is memory saturated, and I don't think that all the memory path aggregates in many designs until the L3 cache (usually L1 not shared, L2 perhaps shared a bit). The real bottleneck ends up being the cache coherency protocol, and cache snoop events, handled on a separate bus, which might even have concurrent request channels.

I think in Intel's Xeon E5 line-up there are single-ring and bridged double-ring SKUs for forwarding dirty cache lines from one cache to another (and perhaps all memory requests). This resource can also drown for many workloads.

In many systems, you have all these cores running tasks which are fairly well isolated (not much cache conflict), except they all want to be able to allocate as much memory as they need from a giant memory space (e.g. a TB of DRAM) so they fundamentally have to fall through to a shared memory allocation framework.

You can learn a lot about the challenges involved by following the winding path of something like jemalloc as increasing concurrency levels expose yet another degeneracy.

The real problem with this field is that there isn't a single, simple story like the one you tried to tell. There are usually dozens of ways to skin the cat, each with completely different scaling stories, with different sets of engineers who are good as tweaking or debugging those stories.

At this point, what you have is a fragile coordination problem between your solution space, your architecture, and the engineers you employ, forcing ambitious ventures to crack out the golden recipe: pour in seven cement mixers full of head hunters, one 55-gallon oil drum of exclamation marks, a metric butter tonne of job perks, and agitate appropriately.

Comment Re:Democrats too (Score 2) 75

Here's cash flowing into the Clinton Foundation from corporations benefiting from selling dual use technology [nypost.com] (private and military uses) to Russia.

In case you haven't noticed, most of our "dual use" technology has been shared with the Russians for a long time already. For example, the decimal number system.

In some instances, we might even consider ourselves better off if the Russians did choose to adopt our technologies, such as fail-safe command and control systems responsible for nuclear weapons (supposing our technology is actually better; I suspect the Russians have had 8" floppy disk drives for quite a while already).

Just about any improvement in the Russian commercial space would probably trickle down to the Russian military (trickle down seems to work much better in some directions than others). Are we still in the middle of a 1950s-style total economic blockade? Not that I've heard. Our bigger technical battles are with countries who have not yet produced thousands of nuclear warheads.

In summary, all of this is all a lot of hand-wavy durf, durf, durf.

Point to a real technology and describe an actual scenario where the Russian military benefits, and then explain how the Russian benefit A) is a serious NATO concern, and B) wasn't going to happen anyway sooner rather than later. Having met that bar, then maybe this issue will start to seem important to people outside your particular Kool-Aid enclave.

Hint #1: you might need to avail yourself of sources other than wnd.

Hint #2: just about every dollar given to a politician comes from someone with an interest who wants something.

Arguably the Saudi's and their Wahhabist agenda have done more damage to American foreign interests over the last thirty years than anything the Russians have done. That line of thinking would probably lead you straight back to the Bush Foundation.

Bush's Newest Secret: Who's Funding His Library?

In this piece, Mother Jones at least displays the decency to tar the Democrats and the Republicans with the same brush.

Comment Next up... (Score 1) 151

Coming next: Facebook tests out modal popup windows as a means of delivering the content - aka ads - people really want to see, rather than wasting their time taking them directly to things like profiles, pictures, or their wall.

And as a bonus, pop-under porn ads, so you can enjoy one last bit of joy from Facebook while desperately trying to close out of your browser as the boss approaches.

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