Agreed, humanity is unlikely to survive an asteroid of the likes that wiped out the dinosaurs, considering it increased global atmospheric temperatures to several hundred degrees celsius for a few minutes (or several thousand for a few seconds) (https://www.youtube.com/watch?v=dFCbJmgeHmA).
It doesn't look like we need the help of celestial bodies intersecting ours, though. We're ushering in our own demise just fine on our own, thank you very much!
It doesn't look like we need the help of celestial bodies intersecting ours, though. We're ushering in our own demise just fine on our own, thank you very much!