I’m about as worried about this as I am about galaxy eating monsters. Not at all, really.

I’m more bothered by our apparently non-existent ability to detect and divert asteroids. More than that, I’m terrified of our habit of using global cataclysm as a strategic threat. But at the same time I feel like a species that acts like this probably should end themselves like that. Russian civilians consent to nuclear apocalypse.

So yeah, not very bothered by idea of false vacuum.