Billy Brown wrote:
> O'Regan, Emlyn wrote:
> > I'm a bit worried about all this talk of Jupiter sized brains (although
> > I'm guilty of it myself).
> Me too. Obviously a device built out of degenerate matter, in the shape of
> a shell covering the surface of a white dwarf, would provide much better
> performance in a far smaller volume of space (although the mass required is
> larger by a factor of a few thousand). Come on, guys, lets see some
> imagination! ;-)
Well, I suppose neutronium is *okay*, if you're not worried about *efficiency* or anything...but Real Powers Use Monopolium. Not neutronium. Not Higgsinium. Raw, incredibly dense monopoles.
This is the story of Mel... no, just kidding. Anyway, my handy-dandy reference, "Harvard Doesn't Publish Science Fiction" by Moravec in _New Destinies III_ (it should be called _New Densities_, ha ha), says that Higgsinium (formed of pseudo-iron atoms with a nucleus of 26 negative Higgsinos and 26 protons orbiting the nucleus) is 10^18 times as dense as water. Monopolium, formed of magnetic monopoles bound by their opposite polarities instead of electrical charges, is 10^25 times as dense as water - a thimbleful weighs as much as the Moon. Switching speeds increase accordingly.
Don't tell *me* about Moore's Law running out of room.
Thus an actual Jupiter Brain, formed of Jupiter, would probably be just around a meter wide (?). You can't have a Brain that's actually the size of Jupiter because it would collapse and form a black hole, not to mention that there isn't that much mass in the whole solar system or possibly the galaxy.
Questions for Thought and Study:
According to these assumptions, far from being mutually telepathic, the future may be filled with individuals far more alone than we ever were. I happen to think that Real Powers Use Alpha Points, but if anyone did the calculations above, it would probably make a nice article somewhere. Alas, I lack the physics, since a mortal has to draw the line somewhere...
-- email@example.com Eliezer S. Yudkowsky http://pobox.com/~sentience/AI_design.temp.html http://pobox.com/~sentience/singul_arity.html Disclaimer: Unless otherwise specified, I'm not telling you everything I think I know.