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The supposition is that if you can hold coherence you can basically try every solution to a problem at once.

Kind of.

So that's a bit of an improvement on where we are today.

As for neurons and consciousness, Penrose famously thinks consciousness is a quantum process. I'm not sure we have a good enough model of how neurons actually work to say if he's right. (Probably not, but it's too early to tell.)

There's a bigger problem with speeding up human AI, which is that you can't build literal human AI and expect to run it at vastly amplified speeds developing mental problems.

If your consciousness suddenly speeded up by a couple of orders of magnitude everything around you would appear to happen very slowly, and you'd effectively be in solitary confinement for most of the day. Even if you were hooked up to the Internet so you could mainline Google, you'd still have problems getting enough stimulation.

Add near-perfect recall, and noise would recirculate to the point where the system would become unstable almost instantly, in real time.

It turns out that human dreaming is an essential sorting and filing mechanism, so you'd have to build in an equivalent form of garbage collection.

Similarly, brains are highly structured and not just a big wet bowl of neurons. The thinky parts probably won't work well without the other parts, and no one has a particularly good picture of how all of it hangs together.

And I'm fairly sure that natural language is a separate module, and not the same thing as a general modelling machine. What looks like a really hard problem to a human - formally defining how language is used to communicate associatively - probably won't be a really hard problem to a machine that is almost infinitely parallelised, with almost infinite memory.

It may have to rely on experiential axioms and a large library of metaphors to simulate comprehension. But that's not inherently a difficult problem with an almost infinitely parallelised quantum architecture.

by ThatBritGuy (thatbritguy (at) googlemail.com) on Sat Aug 27th, 2011 at 11:53:00 AM EST
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