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Comment An Extra Bit of Register (Score 5, Insightful) 332

When AMD gave a presentation to my processor design course (not coincidentally about 10 years ago) one of the presenters said that one of the most surprising speed-ups for 64-bit code came from just having 16 real general purpose registers to work with. Even though register renaming lets you smooth over them, it meant all those extra load and store ops (that RR would identify as waste and work around) now didn't need to be in the code at all. It turned out to be rather non-trivial for one of their test apps.

So those 32 extra bits of memory addressing are nice. But don't forget about that 1 extra bit for identifying registers!

Comment Re:Well the ultimate value of a dollar is (Score 1) 605

The relationship between the money supply and inflation isn't quite that naive. While there are more dollars now, there are also more people doing more work producing more value; if there wasn't more money, there would have been deflation, which is much more crippling to an economy than inflation. (Which is one of the reasons gold didn't work out in the long run, and why bitcoin won't either.)

Fiat currency is sort of like the relativity of economics. It makes people uncomfortable, it doesn't seem to jive with everyday experience (although it does), and it pulls the rug out from under the idea of universal references (either reference frames or the valuableness of certain rare metals.)

Comment Why ALL or NOTHING? (Score 1) 1174

I'm not sure what to think about this. I enjoyed Ender's Game as a kid[.] On the other hand[...]

Why do people (geeks in particular perhaps) get so hung up on having to either agree with EVERYTHING or NOTHING someone says and believes? Do you like the Cthulhu mythos? Well, Lovecraft was an unrepentant racist. He still wrote some great fiction though! I love Tom Cruise movies. But, he's an unrepentant Scientologist. He's still a fine actor though! You don't have to reject every word someone has ever said just because you disagree with them about one thing. You absolutely should let that knowledge inform your thoughts. And you absolutely should not feel any qualms about participating in a boycott. But you don't boycott Card's works because they're BAD. In fact, the fact that he's a good author makes your boycott even more compelling, since you're probably missing out on a great story--you're cause some harm to yourself--in order to call attention to a cause that's more important to you.

Here's what you should think: Ender's Game is still a good book. Card is still a homophobic asshole. A better question is, what are you going to do about it?

Comment Re:It's not a planet (Score 1) 104

...exclude Pluto, other Kuiper Belt Objects, AND asteroids. Remember asteroids? They were "planets" too, for about a century, until there were too many to take seriously. Which is what was going to happen with the KBOs. Pluto had to go, or there had to be over 10,000 "planets." I'd hate to see the mnemonic to memorize them all...

Comment Re:Why bother without IRV (Score 3, Insightful) 221

Not the only way, or even the best way. IRV still has spoilers, and so still tends toward two-party domination (just ask Australia.) If you want a system where more than two parties can actually compete, better to go with approval voting or score voting.

http://www.electology.org/approval-voting

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