“Time machine? Sweetheart, I don’t have a time machine. Time machines don’t even exist.”
“Sure they do, Daddy. I see them everywhere.”
She was very self-assured for only being four.
“Do you now? Tell me, where exactly is the last place you saw a time machine?”
“Lift up your arm.”
I slowly raised my right arm.
“Not that arm, Daddy. The other arm.”
I raised my left arm.
“See, the time machine’s on your wrist. Whenever I ask you what time it is, you always look at your time machine.”