meekerdb wrote: > > On 12/7/2011 8:14 AM, benjayk wrote: >> Tegmark's argument shows only that the brain is essentially classical if >> we >> assume decoherence works the same in natural systems as in our >> "artificial" >> experiments. But it seems natural systems have a better ability to >> remain >> coherent, when it would be impossible otherwise (see photosynthesis). So >> it >> seems we can't rely on Tegmarks assumption. > > Photosynthesis doesn't require much coherence. http://www.physorg.com/news/2011-12-evidence-quantum-photosynthesis.html
And wikipedia says "Studies in the last few years have demonstrated the existence of functional quantum coherence in photosynthetic protein. [...] These systems use times to decoherence that are within the timescales calculated for brain protein.". meekerdb wrote: > > Even aside from Tegmark's analysis, it's > easy to see that brains should be mostly classical. There would be great > evolutionary > disadvantage to have a brain that was in a coherent superposition when it > needed to inform > actions in a mostly classical world using a mostly classical body. What if the classical world is just an simplificated world as an epistemological model that's helps us to survive well in the world of infinite quantum possibility (which is extremely hard to survive in without it)? It may be that quantum processes are of great importance everywhere in nature, and it is precisely our capability of consciousness to make simple models that makes it appear classical. We have more and more evidence of that, as we discover quantum coherence in plants and many phenomena that are virtually impossible to explain in terms of classical physics (paranormal phenomena). benjayk -- View this message in context: http://old.nabble.com/The-consciousness-singularity-tp32803353p32934592.html Sent from the Everything List mailing list archive at Nabble.com. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to firstname.lastname@example.org. To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.