Exactly. I think trying to validate end-to-end is tail-chasing. Reminds me of Adam Curtis' BBC documentary "The Trap," whrein people create a limited theory of

Exactly. I think trying to validate end-to-end is tail-chasing. Reminds me of Adam Curtis' BBC documentary "The Trap," whrein people create a limited theory of human behavior based on game theory, but the attractiveness of numbers results in the reformation of society to better fit those numbers, even if they don't fully represent human behavior and leave us worse off than before. It's like trying to create an AI to play chess but the creators focus so hard on keeping it from making moves that result in its losing the queen that they forget that the objective of chess is to win.