Once the booster hit solid ground, someone opened the door and Elon's son made a very unhappy exit. You could hear him cry even after the door closed. Elon was slightly amused and then went on with the show.
Musk went on to tell those present at the National Academy of Sciences, Engineering and Medicine about his Starship spacecraft.
It's rare we see Elon interact this way ... he said after X was born, "Babies are just eating and pooping machines, you know. Right now there's not much I can do," adding Grimes, the baby's mom, is essentially the primary caregiver.