To find out what you don't know, you have to do

Google Alerts informed me of this insightful article. The whole thing is interesting, but the clip that jumped out at me was this:

That's one of the big things I've learned over the past three years at Masten Space Systems - you never know how much you really don't know until you try to find out.

We often talk about the importance of knowing what you know and don't know, but sometimes we forget how to discover what we really don't know. It isn't just about thinking and analyzing.