When I see myself at 14 years old I can put my hands on my head and think: 'How could I have done that?' but at that time it had sense for me. You do the same when you're 20. And now, when you look at people who are 20 years old you ask yourself: 'Was I like that? Was I really like that?'
The thing you can't let go of is gravity. The reality of gravity in writing. If someone says something really mean in a sitcom, and the next wave isn't a reaction to the reality of that, you start losing relatability. In a lot of romantic comedies, they throw out the rules of life.