(Which reminds me: we don't talk anywhere near enough about computational complexity on LW for my tastes. What's up with that? An agent can't do anything right if it can't compute what "right" means before the Sun explodes.)

I spent a large chunk of Sunday and Monday finally reading Death Note and came to appreciate how some people on LW can think that agents meticulously working out each other's "I know that you know that I know" and then acting so as to interact with their simulations of each other, including their simulations of simulating each other, can seem a reasonable thing to aspire to. Even if actual politicians and so forth seem to do it by intuition, i.e., much more in hardware.