I think the whole issue of where to start in AGI is hopelessly contentious, because there is no working AGI other than a brain. So, really, the neuroscience approach under that assumption is the most promising. But, even though approaches cut corners, it seems, by introducing a computable analog to the brain. A lot of people say "such and such approach won't work" but there is only arguments to support it -- no proof.
On 7/25/13, Matt Mahoney <[email protected]> wrote: > 1. AIXI won't solve AGI because AIXI is not computable, and good > approximations are intractable beyond toy problems. > > 2. AIXI won't solve AGI because language, vision, robotics, and art > are not goal directed optimization processes. Reinforcement learning > is responsible for a very tiny fraction of what you know because it is > a low bandwidth signal. > > 3. AIXI is not a good model of reinforcement learning in humans and > other animals. A positive (negative) reinforcement signal makes you > more (less) likely to repeat behavior that preceded it. That is not > the same as rationally changing your behavior in a way that increases > expected reinforcement. If they were the same thing, then your desire > to use a drug would not depend on whether you have already tried it. > > 4. Not all reinforcement signals are the same. Nausea will make you > less likely to eat something you ate an hour earlier. Electric shock > would have a different effect. > > 5. AIXI apparently can't even play Pac Man very well. > > -- > -- Matt Mahoney, [email protected] > > > ------------------------------------------- > AGI > Archives: https://www.listbox.com/member/archive/303/=now > RSS Feed: https://www.listbox.com/member/archive/rss/303/11943661-d9279dae > 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/303/21088071-f452e424 Modify Your Subscription: https://www.listbox.com/member/?member_id=21088071&id_secret=21088071-58d57657 Powered by Listbox: http://www.listbox.com
