OK.
It is a reference to It's the Great Pumpkin, Charlie Brown a 1966 American prime time animated television special based on the comic strip Peanuts by Charles M. Schulz.
Charlie Brown had great hopes and ambition for Halloween candy (space mining) and all he gets are rocks.
The "World Space Agency" could spend Billions of Earth Resources and fly to a rock and have nothing of value.
There is Helium3 on the Moon. Not being mined.
Esperanto is a rock too.
A Spaniard, a Cuban a Mexican and a Venezuelan walked into a bar.
They all "speak Spanish" and still couldn't communicate. A Puerto Rican told me that.
People tend to cling to their own culture as long as possible before assimilating.