I can pretty easily distinguish useful LLM output from non-useful LLM output though others on this website seem to have lots of trouble. I think I can pretty easily do the same for things in the visual field. To be honest, part of why I'm successful is that I can draw use out of imperfect tools.
Oh boy. Fake detail is well, fake. It doesn't allow you to learn anything about the world beyond self-deception. But of course, if this is what rocks your boat then be my guest.
