Once upon a time, in an otherwise empty universe, there were two notebooks, a fox, and a little prince. The fox clawed at some mud with its paws (oh yeah – there was some mud, too) and filled the first notebook with muddy paw prints. The little prince thought up many fine jokes and wrote them all down in the second notebook. Time passed, and the fox died. More time passed, and the little prince died.

TRUE OR FALSE: At the time of the little prince’s death, the two notebooks had exactly the same semantic content (namely, zero).