I like to imagine at the end of the human race when the sun explodes or whatever, some angelic being will tally up all the numbers ever used by humans and confirm that there are only finitely many of them. Then they'll chalk a tally on the scoreboard in favor of the ultrafinitists.

As long as someone isn't a crank (e.g. they aren't creating false proofs) I enjoy the occasional outsider.

Heh that's about the only place and time when we'll know for sure, and until then, it's just high-grade banter :)