My understanding is the first thing is what you get with UDASSA and the second thing would be what you get is if you think the Solomonoff prior is useful for predicting your universe for some other reason (ie not because you think the likelihood of finding yourself in some situation covaries with the Solomonoff prior’s weight on that situation)
My understanding is the first thing is what you get with UDASSA and the second thing would be what you get is if you think the Solomonoff prior is useful for predicting your universe for some other reason (ie not because you think the likelihood of finding yourself in some situation covaries with the Solomonoff prior’s weight on that situation)