[dietrichepp]

Yes, this is real and it can be done rigorously. The big problem is, "How do we come up with reasonable priors?"

It is still a minority position.

[guscost]

> The big problem is, "How do we come up with reasonable priors?"

Predictably, as a hardcore supporter of Popper's version, I don't think this problem will be solved.

[eli_gottlieb]

Empirical Bayes methods (in which the priors come from observed sample data) are a thing.