"Those of us who are parents tend to try to discourage our kids from getting married too young, because we know how much people change around their twentieth year. Around the age of 19 or 20 is when we start that last major rewiring of our brains to become adults. "
from
The State of the Onion 10
"The point I was trying to make in this section is that all languages have a natural system-size limit, beyond which your innovation starts to slow down dramatically. It happens regardless of how well you've engineered your system, and regardless of whether your team is one person or a thousand. Overall productivity never goes to zero, but that's moot; the point is that you started out strong and now you're weak."