Jim Fehlinger wrote,
> ... It's certainly true that most of
> the talk about AI on this list has been in terms of
> software running on some sort of digital substrate
> ("computronium", or whatever), but that's not the only
> way AI or SI could happen.
We don't know (for sure) how it could happen.
For all we know, intelligence invariably reaches a level where it understands
that reality eternally repeats itself. From there, the cleverest strategy may
involve a hasty retreat back into forgetfulness.
> While digital integrated circuits might be the most
> glamorous electronics on the market these days, don't
> forget that there are still linear ICs being manufactured!
> It's altogether conceivable that a non-biological AI or
> upload could use molecular or nano-scale **linear** devices
> as processing elements! Such a contraption might not be
> quite as tame inside as we probably visualize -- most of us
> probably think of some sort of 3D crystalline lattice of
> nanotubes with nothing but electrons flashing around, and with
> all the action happening in software, rather than something that
> might look more like Babbage's (or Gibson and Sterling's)
> Difference Engine, with gears and whirlygigs making and
> breaking connections or aiming little laser beams around,
> or scurrying nanobots. Or what about an AI/SI made
> out of honest-to-God biological tissue, but freed from the
> confines of a human skull and serviced by nanobots (yes,
> that idea gives me the creeps, too. Too _Last and First
It's also possible that the human brain forms 3D images by actually connecting
neurons in 3D patterns that map to sensory experience. Again, none of this
requires conjuring analog computation.
> I get the impression that's the way Kurzweil thinks AI
> will happen -- he talks about the brain as a "digitally-
> controlled analog system", and I think he thinks we're
> going to get to AI by reverse-engineering the human
Not to misrepresent Kurzweil, but he probably knows that computers will do
most of the work when it comes to engineering human-competitive machine
intelligence. In fact, accurate reverse-engineering the human brain encourages
the implementation of many human-competitive expert systems working
collaboratively. AI will continue to develop from the "collaboratory" (check
out their site) of human invention and well-managed market forces.
> Maybe a partly analog phase will be a necessary **transition**
> on the way to all-digital AI and/or uploads
But I no longer believe in analog computers, so for me, partly analog equates
to partly ludicrous.
> Here's a deep question: would an analog AI constructed out
> of vacuum tubes have a "mellower" personality than one
> made out of transistors? ;-> ;-> ;->
Yes, because analog AI exists only in the mellow imaginations of 60s dreamers.
consciousness, phlogiston, philosophy, vitalism, mind, free will, qualia,
Buy this book:
(or Fred will write another one)
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