Simply put, I think it's infinity + infinity = multiple infinities
I don't think they meant finite infinity, just separate.
If you think about it in simple terms, like just dots, multiple infinities isn't an impossible concept.
Kind of how linear time branches off into infinite different possibilities, each no less real than the other.
Actually, I think it's exactly the same..
Or is the brached timeline all within our own infinity, or is each brach a new infinity on its own?
If not, then the other infinities must be a completely different universe, with its own branched timeline.
Kind of interesting to think about it..