Yet another philosophical novel, set in a universe where most humans have uploaded themselves into computers but can also download back into animal bodies or robots. As if not complicated enough, there is a lot of physics. I have a physics degree but still found myself doing little refreshers on quantum mechanics, black holes, fibre bundles and the like, as the "heroes" of the book travel through interstellar space, atomic nuclei and other weird universes.

I think it will be OK if you don't know the details of the physics.