I used to love to untangle chains when I was a child. I had thin, busy fingers, and I never gave up. Perhaps there was a psychiatric component to my concentration but like much of my psychic damage, this worked to everyone's advantage.
I just turned 30 so I got really introspective as you do, questioning my life. And when I stopped and sort of looked back at the past decade, I realized I had done more work than I thought I had done.

