"But a better analogy would be if an AI generated a computer game that another computer can learn to play." Doesn't the latter AI have a policy which contains

"But a better analogy would be if an AI generated a computer game that another computer can learn to play." Doesn't the latter AI have a policy which contains novel information that does not exist in the former AI? Even if what you say is true in some abstract information theory sense (and I would question that), there is a world of practical difference in the usefulness of a trained self-driving AI and the game engine within which that AI functions.