I think there's a legitimate question as to whether every real number is actually physically real. [1] It seems credible that our universe can only actually pre

I think there's a legitimate question as to whether every real number is actually physically real. [1] It seems credible that our universe can only actually present us with a finite number of possible sensory experiences, in which case an event with probability 0 actually couldn't ever happen. That said, even if the universe can present you with an infinity of observations you can certainly only consider a finite number of classes of them, leading to the same outcome. [1] https://arxiv.org/abs/math/0411418 https://arxiv.org/abs/math/0411418