Nietzsche is just summarizing Darwin.
As it should be...
In the face of AGW it is difficult to be positive...
New idea: everything is unfolding as it should
AGW pace is perfect for humans to deal with because
Any slower pace of warming and we would not see it,
Any faster pace and there would be tumultuous panic.
This rate of change is perfect for humans to rise to the challenge, it calls forth all our unified strength.