[donatj]

We adapted to its harshest climates over a remarkably small timeframe, something that took other species eons. I think you’ve made my point.

[lotsofpulp]

The dataset is too small to “make” any point. 6M years out of 4.5B years( or even more if you expand out into the universe) is a fluke.

The climate can change faster than we can, and we can destroy each other or set each other pretty far back technologically. Either way, there are myriad reasons that the relatively recent past need not be indicative of the future.