Explaining Knightianism on one foot — LessWrong
I’ve tried several times to summarize the core question my research is trying to tackle (and, indeed, I often think of research progress as a process of asking increasingly good core questions).[1] This post gives the deepest version of that question I’ve found thus far: how should you relate to the parts of the world you can’t directly model or control? Let me explain further in terms of a distinction between two perspectives. From the third person perspective you think of yourself as “outside” the world, looking in. You’re a good Bayesian, in that you have a set of mutually exclusive collectively exhaustive hypotheses. You choose actions by multiplying your credences by your utilities over those hypotheses, and you treat those actions as the only way you influence the world. Some problems with the third person perspective (aka Cartesian or dualistic agency) were described in Scott and Abram’s sequence on embedded agency. One crucial issue is that most realistic environments contain o