[ suddenly everything is becoming a lot clearer with the follow-up. he answers without the quip that he could have. ]

Now that depends. Intergalactic species and travelers have their own sleeves with tricks. It depends on who to say how many. [ he waves his hand back and forth. ] The Kree, the Skrulls, the Builders, the Watchers, and the like. There's a lot, as in a lot a lot.

That's to say if David's theory even holds any water. We've been to many universes, all of them different, some of them bad ends. Who you are somewhere may not hold to who you are somewhere else.