1. Irrational behavior is much more common in humans than what I had imagined. The world seems to be running on it. 2. If you are not experimenting, you are

1. Irrational behavior is much more common in humans than what I had imagined. The world seems to be running on it. 2. If you are not experimenting, you are not learning. E.g., Don't be scared to share your thoughts with others, since if they are wrong that's your shortest path to get corrected. 3. Need to figure how to undo childhood learning that is likely wrong but yet ingrained in our minds. Plus a large number of technical things that the question does not preclude though probably does not intend to ask for.