XXX is:
A funny story. My daughter (7 years old) became interested in how we jump up, and in Australia (from the other side of the Earth) they still jump up, they also head down.

explained and explained. Then he opened the unit, threw a sphere of 1000 meters in radius on the stage, put a pair of characters: "This is Earth, this is in Moscow, this is in Australia, this is how they jump."

Everything immediately became clear. Gilmore is rolling.