All of slarson's Comments + Replies

slarson20

I did -- could you summarize what parts of this you take away to discourage you specifically? There's quite a few things you could be resonating with there.

2John_Maxwell
Sure. So to give you some context, WBE is an acronym for Whole Brain Emulation. You can read this report by the Future of Humanity Institute at Oxford where they detail the technological development that'd be required to achieve this. If it did end up getting achieved, the consequences for society could be enormous. An emulated brain could do the same work as a software developer, researcher, etc., but the emulated brain could be run at a much faster subjective rate (say, doing a week's worth of subjective thinking in the space of 5 minutes) and for less money (given continued decreases in the cost of computer hardware). Robin Hanson, the GMU economics professor who wrote the "Bad Emulation Advance" blog post, is very interested in ems... here is a presentation where he fleshes out the possibilities of an emulation-filled future in some detail. It's not a terrible future, but it's not a terrifically bright one either. One future that probably would be pretty terrible is if we had an extremely intelligent artificial intelligence that was built on some technologies inspired by the human brain but was not a high-resolution exact copy of any living human ("neuromorphic AI"), and was not carefully constructed to work towards achieving human values. You can read this for a short summary of why this would likely be terrible, or this for a longer, more fleshed-out argument (with entertaining background info). So this is why we want to tread carefully. It's suspected that neuromorphic AI is harder to construct in a robust, provably safe way, and given the dangers of haphazardly constructed superintelligences, it seems like we'd rather see more mathematically pure AI methods advance, if any at all. That's what this link is in reference to. I know that was a pretty high density of crazy ideas in a pretty short period of time, and there are some leaps of reasoning that I left out... let me know if you've got any thoughts or questions. To a futurist like me, things like bette
slarson160

Thanks for pledging and encouraging others to pledge! Full disclosure: I'm the coordinator for the project. I've been having a look through the discussions on your references and I'd offer the following thoughts:

I think Hanson's three part break down (Computing power, brain scanning, cell modeling) is useful and I agree that cell modeling is an important research investment that has not had enough focus, either academically or industrially. Better cell models is one of the technological advances that OpenWorm helps to address due to its approach to mode... (read more)

1John_Maxwell
Hi Stephen, thanks for chiming in! Did you take a look at this that I linked to at the bottom?
slarson10

There is a good review of strategies for building computational models of neurons here:

http://www.ncbi.nlm.nih.gov/pubmed/17629781

slarson30

I think you are right on. I would extend your comment a bit which is to say we are not just missing a methodological breakthrough, but we are not even really attempting to develop the methods necessary. The problem is not just scientific but also what is considered to be science that is worth funding.

slarson10

Modeling lobster stomach ganglion work is going on at Brandeis and what they are finding is important: http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2913134&tool=pmcentrez&rendertype=abstract

Given the results they are finding, and building on their methods it is not inappropriate to start thinking one level up to c. elegans

slarson50

I would respectfully disagree with Dr. Hayworth.

I would challenge him to show a "well characterized and mapped out part of the mammalian brain" that has a fraction of the detail that is known in c. elegans already. Moreover, the prospect of building a simulation requires that you can constrain the inputs and the outputs to the simulation. While this is a hard problem in c. elegans, its orders of magnitude more difficult to do well in a mammalian system.

There is still no retina connectome to work with (c. elegans has it). There are debates ab... (read more)

slarson180

Hi all,

Glad there's excitement on this subject. I'm currently coordinating an open source project whose goal is to do a full simulation of the c. elegans (http://openworm.googlecode.com). More on that in a minute.

If you are surveying past c. elegans simulation efforts, you should be sure not to leave out the following:

A Biologically Accurate 3D Model of the Locomotion of Caenorhabditis Elegans, Roger Mailler, U. Tulsa http://j.mp/toeAR8

C. Elegans Locomotion: An integrated Approach -- Jordan Boyle, U. Leeds http://j.mp/fqKPEw

Back to Open Worm. We've jus... (read more)