Sam Altman asked ChatGPT why his baby keeps throwing pizza on the floor and laughing. Scientists at Johns Hopkins answered that 11 years ago, and honestly the answer is a little embarrassing for the guy who runs ChatGPT. If your kid ever did this to you at dinner, you were watching a physics experiment. Two researchers, Aimee Stahl and Lisa Feigenson, brought 110 babies into their lab, all around 11 months old, and showed them toys doing impossible stuff. Some of the babies watched a ball…