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" The globby aliens went a very pale green. The pirates, shiny-black-hair-men, and the piranhas looked at them puzzled, seeking some kind of explanation, as did the wumpires.
"If two things that are the same thing touch," proclaimed the volcano god, "then the whole Universe shall end. Thus sayeth the great and unutterable Splod."
"How does a volcano know so much about transtemporal meta-science?" asked one of the pale green aliens.
"Being a geological formation gives you a lot of time to think," said Splod. "Also, I subscribe to a number of learned journals. "
― Neil Gaiman , Fortunately, the Milk