It hits— not exactly like a tonne of bricks, but at least tripping on a rake and having it smack him in the face. Because Strange takes in that piece of information, and feels a complete ninny: “Is it ridiculous if I said I thought three of you were triplets? Occam’s razor: the simplest explanation had seemed the most viable. Christ. I didn’t even second-guess it.”

But for all that it’s a startling relevation, mostly what it gets from him is a thoughtful expression, chewing over those implications.

“You probably noticed on the trip through my and Tony’s world: we’re more technologically-advanced in general than some of the other twenty-first century Earths. I wouldn’t be surprised if some biotech subsidiary of Stark Industries would’ve gotten there eventually, with cloning. But to my knowledge, we hadn’t cracked it yet. So it’s… commonplace, where you’re from?”