A possibility as such, looked dim, on the arena of ST's Ninjutsu, even. Surprise, stemmed from such, as it, is obvious. Went with, the theory, because, only possibility, at the moment, that is.
Kamui is unique spacetimes, Minato effortlessly, throws knives, to make a point, in his field, best user of ST's, at that era, efficiently was & is him(Minato). Any mechanism borrowing power of ST, outside of his (Minato), is impossible, because a shinobi's world behaved, like, the damn dude, is unsurpassable. Never, did thier mathematical, capacity calculate, scenario, proving extra spacetime, apart from, the written above-guy's, can and could, conjure, anytime soon, but hey there, said Kamui, proving existing laws, prior produced throughout territory of, spacetime, moot.