I've actually got a pretty solid grasp on the underpinnings of this stuff, Terren. I was agreeing with you: memory formation via gene modification may be only endemic. Probably not all or the reproductive cells have their nuclei written to by every, or any, given stimulus. Yet, there are arguments from ancestral memory and morphogenic fields and stranger things to explain.
What I see here is a blurring of the mechanisms of thought, memory, and genetic storage, that I think is hinted at in our evolutionary past. I could have expressed that a lot better. I apologise ;o On 12/11/08, Matt Mahoney <matmaho...@yahoo.com> wrote: > --- On Thu, 12/11/08, Eric Burton <brila...@gmail.com> wrote: > >> I don't know how you derived the value 10^4, Matt, but that seems >> reasonable to me. Terren, let me go back to the article and try to >> understand what exactly it says is happening. Certainly that's my >> editorial's crux > > A simulation of a neural network with 10^15 synapses requires 10^15 > operations to update the activation levels of the neurons. If we assume 100 > ms resolution, that is 10^16 operations per second. > > If memory is stored in neurons rather than synapses, as suggested in the > original paper (see > http://www.cell.com/neuron/retrieve/pii/S0896627307001420 ) then the brain > has a memory capacity of at most 10^11 bits, which could be simulated by a > neural network with 10^11 connections (or 10^12 operations per second). > > This assumes that (1) the networks are equivalent and (2) that there isn't > any secondary storage in synapses in addition to neurons. The program I > posted last week was intended to show (1). However (2) has not been shown. > The fact that DNA methylation occurs in the cortex does not exclude the > possibility of more than one memory mechanism. As a counter argument, the > cortex has about 10^4 times as much storage as the hippocampus (10^4 days > vs. 1 day), but is not 10^4 times larger. > > -- Matt Mahoney, matmaho...@yahoo.com > > > > ------------------------------------------- > agi > Archives: https://www.listbox.com/member/archive/303/=now > RSS Feed: https://www.listbox.com/member/archive/rss/303/ > Modify Your Subscription: > https://www.listbox.com/member/?&; > Powered by Listbox: http://www.listbox.com > ------------------------------------------- agi Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: https://www.listbox.com/member/?member_id=8660244&id_secret=123753653-47f84b Powered by Listbox: http://www.listbox.com
