Most information is very expensive to obtain or use.

“In fact, the information can be very expensive. And in fact, I would say most information is very very expensive. If you completely say, well constraints don't matter uh I I don't need any prior information, I don't want to encode anything in there, we still have the problem of now needing to train for you re-learn everything from scratch. He believes that you can figure out like a a suitable reward function for every task. That is enough. Like I think that energy-based models are not really useful.”