Skeptico's interview with Dr. Stuart Hameroff http://www.skeptiko.com/stuart-hameroff-on-quantum-consciousness-and-singularity/
excerpt: "The bit with the AI and the singularity, there’s actually a couple of points of friction here. As I said, I spent 20 years studying microtubule information processing. The AI approach would be, roughly speaking, that a neuron fires or it doesn’t. It’s roughly comparable to a bit, 1 or 0. It’s more complicated than that but roughly speaking. I was saying no, each neuron has roughly 10-8 tubulins switching at roughly 10-7 per second, getting 10-15 operations per second per neuron. If you multiply that by the number of neurons you get 10 to the 26th operations per second per brain. AI is looking at neurons firing or not firing, 1,000 per second, 1,000 synapses. Something like the 10 to the 15th operations per second per brain… and that’s without even bringing in the quantum business. So that alone was pushing the goalpost way, way downstream into the future." <end excerpt> Also available as a MP3. T

