Another insight into his process was all the talk about envisioning math problems as "ok you have a sphere, and now the sphere has hair on it", and things like

Another insight into his process was all the talk about envisioning math problems as "ok you have a sphere, and now the sphere has hair on it", and things like that. I think Feynman's brain was wired in a way that he could use strange pathways to come up with an intuitive solution.