Quote Originally Posted by Bill Berson View Post
I read the low alt guidelines. Seems to be missing most of the hazards, I think...
I agree. I think the biggest hazards that they omitted are:

* The human sensory and cognitive systems are simply not as good as they need to be to dependably detect, analyze, and mitigate all the hazards at the speeds at which they are encountered. Lots of them, no problem. Most of them, sure. But not all; 100% mitigation is simply not in the cards. Even Superman sometimes has a bad day. And it only takes one.

* Results from Dunning and Kruger definitively demonstrate that the human cognitive system is woefully inadequate at assessing its own effectiveness. The first rule of Dunning-Kruger club is that you don't know you are in dunning Kruger club.

But we've known both of those things pretty much since the dawn of human flight. And there's a fix. The fix is margin.

--Bob K.