I think I've read a study on twins having the same dreams? It happens more often than you'd think.

[ Never mind that the implications of him being twins with Haru are horrifying in and of themselves. Makoto settles for an outright dispassionate look. He's no stranger to empathy, although the way it's manifesting in him now is making him second-guess his grasp on reality. ]

It does, but shouldn't we try to explore all possibilities? There's probably, well — a more reasonable explanation, I guess.

[ Not that he's any less affected for disregarding the probability of having a second life, much less a first that reoccurs in his dreams. ]