So here We are, with a big old rock, ready to fall on Us. A Rhino could be nervous, but what are the odds that anything will happen today? Right, negligible. It’s been there a long time, and may stay this way for ages, literally.
The Earth has lots of astonishing events to offer, a few of them terminal, but it works on a schedule We can’t, and you can’t, grasp. Nature decides when it’s time to flip the switch.
Probably We will be somewhere else when it collapses. That’s our plan, anyway.