Well, I just ignored the whole thing about type 1 and type 2 fun. I guess type 2 is something about being patient. Thing is, though, if it's actually fun, it's not painful, and if it is painful, it's not necessary as part of learning, and isn't helping.

I suppose we often have to do painful things to maintain stability, or advance, and indirectly therefore they're necessary as part of a strategy to continue learning. Like, I don't know, work a terrible job to pay the rent. But that's indirect, not intrinsic to learning, so those things don't count.