Consider the obsessiveness with which creators birth new ideas into the world, which we’ve clinically termed “intrinsic motivation”, but don’t really seem to understand beyond that.
We can observe that it is happening, but we don’t know what actually causes someone to drive themselves nearly to death just so they can give an idea a beating heart and a chance at survival in the world.
“Because I had to” or “Because I couldn’t stop thinking about it” are symptoms, not causes.