Optimism is a privilege
The fact that we haven’t all gone horribly mad yet is, in my humble opinion, just another proof of narcissism.
If we’d go mad, due to hospitalizations (and such) we wouldn’t be able to keep doing whatever we’re doing. And we all know how much we love doing whatever we’re doing. It is (whatever it is) the center of our own private universe! So it must be important.
And who’d listen to a mad man anyway?
It’s the right track nevertheless.