The problem with definitions is that you don't know what you don't know. Maybe not definitions, but expectations, certain
There are few things as frustrating in life as wasted time; all the money in the world never bought a second of time.
And then, you learn and do it again. And you swear to yourself that you won't make the same mistake again, but the truth is, we make this mistake all the time.
We have trouble assuming that we're not really knowledgeable about things. We forget to question whether what we know is enough for what we need, and the crazy thing is, the more we learn, the worse this gets.
Only through rigorous rationality and meta-cognitive awareness do we stand a chance of overcoming these stupid biases.
The next step for me, of course, is trying to figure out exactly how I can do that...