What verse is for the poet, dialectical thinking is for the philosopher. He grasps for it in order to get hold of his own enchantment, in order to perpetuate it.
People have been talking about multiverses as a philosophical idea for a long time. But the current incarnations in physics, I think, are more indicative of problems with some things going on at the frontier of physics than ideas that are gonna last.
Philosophical knowledge is the knowledge gained by reason from concepts ; mathematical knowledge is the knowledge gained by reason from the construction of concepts.