“A perfect rationalist can mimic any kind of irrational behavior like Hitler’s, for example.”
What you mean is, AIXI could mimic any kind of irrational behavior. Someone could have perfectly accurate beliefs about everything and still not have Hitler’s speechmaking ability.
Knowing everything means also knowing HOW to produce the best speech. Even more so for all Hitler’s, which were probably not the best possible, after all.
“A perfect rationalist can mimic any kind of irrational behavior like Hitler’s, for example.”
What you mean is, AIXI could mimic any kind of irrational behavior. Someone could have perfectly accurate beliefs about everything and still not have Hitler’s speechmaking ability.
Knowing everything means also knowing what a spoken statement will do inside listeners minds.
Which still doesn’t mean being able to produce it.
Knowing everything means also knowing HOW to produce the best speech. Even more so for all Hitler’s, which were probably not the best possible, after all.