There’s another real point—focusing on your prior as “fit” to the problem/universe.
The space of possible priors Wolpert considered were very unlike our experience—basically imposing no topological smoothness on points—every point is a ball from the urn of possible balls. That’s just not the way it is. Choosing your prior, and exploiting the properties of your prior then becomes the way to advance.
There’s another real point—focusing on your prior as “fit” to the problem/universe.
The space of possible priors Wolpert considered were very unlike our experience—basically imposing no topological smoothness on points—every point is a ball from the urn of possible balls. That’s just not the way it is. Choosing your prior, and exploiting the properties of your prior then becomes the way to advance.