On 3/31/2018 1:32 PM, Telmo Menezes wrote:
On Sat, Mar 31, 2018 at 10:17 PM, Lawrence Crowell <[email protected]> wrote:You would have to replicate then not only the dynamics of neurons, but every biomolecule in the neurons, and don't forget about the oligoastrocytes and other glial cells. Many enzymes for instance to multi-state systems, say in a simple case where a single amino acid residue of phosphorylated or unphosphorylated, and in effect are binary switching units. To then make this work you now need to have the brain states mapped out down to the molecular level, and further to have their combinatorial relationships mapped. Biomolecules also behave in water, so you have to model all the water molecules. Given the brain has around 10^{25} or a few moles of molecules the number of possible combinations might be on the order of 10^{10^{25}} this is a daunting task. Also your computer has to accurately encode the dynamics of molecules -- down to the quantum mechanics of their bonds. This is another way of saying that biological systems, even that of a basic prokaryote, are beyond our current abilities to simulate. You can't just hand wave away the enormous problems with just simulating a bacillus, let alone something like the brain. Now of course one can do some simulations to learn about the brain in a model system, but this is far from mapping a brain and its conscious state into a computer.Well maybe, but this is just you guessing. Nobody knows the necessary level of detail.
Right. Ever notice how your car seems to have a personality. I think we flatter ourselves. I'll bet robots waay smarter than us will be commonplace in 50yrs. They will debate how much dumber they would have to be to download into one of those meat computers.
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