Often extinctions in the ocean occur at the same time as those on land. Then again, the ice age extinctions lost many big animals, but not many sea faring ones.
But the funny thing is, I broke my finger not on set doing kung fu. I broke my finger when I fell down the stairs prior to going on set.
We don't see very far in the future, we are very focused on one idea at a time, one problem at a time, and all these are incompatible with rationality as economic theory assumes it.