So I'm not a morning person. As a new parent of a 1-year-old, I realized I can get an extra 45 minutes of sleep in the morning by leaving books in our baby's crib for her to look through when she wakes up. One night I left Computer Engineering for Babies in there, and after waking the next morning I looked on the baby monitor and I saw her turning the pages of the book, methodically pressing both buttons for the AND gate, one button at a time for the OR gate, etc. It was probably one of my proudest father moments so far. She was about 18 months at that point, and I hadn't seen her really understand the gates before.