Comment by int_19h

I don't think anyone is doing that? The value of entertainment is obviously not zero from the perspective of life quality. The point is that we should be honest about what is done for the sake of output, and what is done for the sake of entertaining the people doing it. If math becomes a hobby, then it's entertainment. There's nothing wrong about it as such (indeed, the ideal world is one where everyone only does things because they are fun for that person to do, not because they have to). But the people who are paying for it deserve to know.