jack

Of course, there are several different ideas about brains based on quantum tricks. There's the Penrose thing that I have little time for. There are some ideas about the identity-preserving nature of quantum states - you can (in principle) teleport them, but you can't duplicate them, which are more intriguing. There's Scott Aaronson's speculations about freebits, which are very much at the "if I let myself extrapolate wildly, here's what I come up with". There's Tegmark - Tegmark![1] - who has some interesting ideas about Integrated Information Theory, and how quantum computing as we actually know it might be needed to give enough integrated information for conciousness (but see Scott Aaronson recently).

[1] The very Tegmark who said that decoherence means that Penrose's ideas don't work.