Malcolm Ocean's roamblog

June 15th, 2021

edited 2021-06-17 · open in Roam
    • Reinforcement learning is backwards because it implicitly says "when reward, behavior change"

      when actually, change is the *default*, and the thing being called "reward" says "stop changing, you found it"

      This figure-ground inversion is key.
    • The whole concept here of PCT (Perceptual Control Theory) is that brains are in some state of organization that is set up to produce a set of controlled perceptions, like getting money to buy food to not be hungry, or telling jokes to make people laugh to feel connection.
    • When something is perceived to be at an unwanted level (eg hunger, safety, connection, thirst, sex, meaning) the system goes into a state of reorganization, inhibiting old strategies and trying new ones.

      Once the error is resolved, the music stops and the organization stays.
    • This is independent from whether the new strategy is actually the thing that solved the problem (which is where superstitions come from).
    • There's also a question of what happens when two strategies for two different needs conflict.

      Often this produces oscillatory tug-of-war dynamics, but if you can gently hold all of the desiderata at once, there's usually some sort of win-win to be found.

      twitter.com/nickcammarata/status/1403558910984966150
    • One important implication of this whole thing is that you can only motivate/train someone with reward *to the extent that they are otherwise deprived of the thing* and