The *Real* Childhood Milestones

Greetings from 37,000 feet, somewhere over the middle of the U.S. Yes, I’m writing this from the plane to Boston, where we’re heading to see family and friends. Henry is in the window seat, strapped into his travel car seat, watching episodes of Mickey Mouse Clubhouse and Stinky and Dirty (if you’re not familiar, it’s a show about the adventures of Stin…