The Multiverse and the Inverse Gambler's Fallacy

I could see, for global travel, a vaccine passport being necessary. Some countries don't have access to vaccines yet. Whereas if everybody in the US has had access to the vaccine and the only people who don't have it are people who couldn't or chose not to,. at that point, hopefully heard immunity. If not, if a new variant or something is killing everybody, obviously we'll be flexible. We'll reschedule. That'll be our biggest concern.