To the doubters about how possibly close we are to creating human level artificial brains, please read the following quote. It indicates that -- if the bugs in the use of multi-layer memristor analog synapses integrated on top of CMOS can be worked out -- such technology may well make it possible to create neuromorphic human-level AGI’s within 5 to 15 years for 30 to100 thousand dollars, of marginal cost. This below quote is from page 2 of “Training and Operation of an Integrated Neuromorphic Network Based on Metal-Oxide Memristors” by Prezioso, Merrikh-Bayat, Hoskins, Adam, Likharev, and Strukov (a 2014 paper available on the web for free):
“… a CrossNets based on a hybrid CMOS/memristor circuit with 5 layers of 30-nm-pitch crossbars, 2 memristors per synapse, and 10^4 synapses per neural cell would have an areal density of ~25 million cells per cm^2, i.e. higher than that in the human cerebral cortex, at comparable average connectivity. Estimates show that at the same time, such CrossNets may provide comparable power efficiency, at a much higher operation speed – for example, an intercell signal transfer delay of ~0.02 ms (cf. ~10 ms in biology) [my comment: i.e., 500 times faster] at a readily manageable energy dissipation rate of ~1 W/cm2.” The paper goes on to state there are still multiple problems to getting such a system to work well, but claims to make significant progress toward solving one of the major such problems. And, of course many more neurons would would have to be added to model other brain structures such as the thalamus, basil-ganglia, Amygdala, cerebellum, etc. So this technology is not yet a certain bet, but it is very promising. [[[[[P.S. I am resending this because this intended content didn't arrive until the 4th entry in the prior thread in which I tried to discuss this.]]]]] ------------------------------------------- AGI Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/21088071-f452e424 Modify Your Subscription: https://www.listbox.com/member/?member_id=21088071&id_secret=21088071-58d57657 Powered by Listbox: http://www.listbox.com
