I personally find the comparison between spike frequency and clockspeed unconvincing. It glosses over all sorts of questions of whether the system can keep all the working memory it needs in 2MB or whatever processor cache it has. Neurons have the advantage of having local memory, no need for the round trip off chip.
We also have no idea how neurons really work, there has been recent work on the role of methylation of dna in memory. Perhaps it would be better to view neural firing as communication between mini computers, rather than processing in itself.
I’m also unimpressed with large numbers, 10^15 operations is not enough to process the positions of 1 gram of hydrogen atoms, in fact it would take 20 million years for it to do so (assuming one op per atom). So this is what we have to worry about planning to atomically change our world to the optimal form. Sure it is far more than we can consciously do, and quite possibly a lot more than we can do unconsciously as well. But it is not mindboglingly huge compared to the real world.
I personally find the comparison between spike frequency and clockspeed unconvincing. It glosses over all sorts of questions of whether the system can keep all the working memory it needs in 2MB or whatever processor cache it has. Neurons have the advantage of having local memory, no need for the round trip off chip.
We also have no idea how neurons really work, there has been recent work on the role of methylation of dna in memory. Perhaps it would be better to view neural firing as communication between mini computers, rather than processing in itself.
I’m also unimpressed with large numbers, 10^15 operations is not enough to process the positions of 1 gram of hydrogen atoms, in fact it would take 20 million years for it to do so (assuming one op per atom). So this is what we have to worry about planning to atomically change our world to the optimal form. Sure it is far more than we can consciously do, and quite possibly a lot more than we can do unconsciously as well. But it is not mindboglingly huge compared to the real world.