Choices are infuriating. Hard to tell if they were right. Can't tell what success rate one has at making various choices. Especially those that are hard to explain or have no precedents. Those made from a flash of intuitive reasoning (or so one imagines) and not just a random popping of neurons.
No what-if projections either, of what things would have been like if a different path of the fork had been chosen.
So at the end of it all, how do you know if you're falling or still on your feet?