[ Minus that soul malarkey - Tony prefers the more scientific term the mind - that's the simplified version of almost exactly what he postulated to Bruce. It's somewhat gratifying to learn that he isn't the only one who thinks that. ]

It's possible. Considering that this is another plane of existence, a case could be made that they needed to create bodies to house the minds they were pulling from the world our memories tell us is real.

[ That's what he hopes happens. It would mean that he really is who his mind tells him he is. But when does he ever get what he wants? ]

And if they're pulling from every dimension there is, it would explain the variations in the people we recognize and think we know.