Dear Ask the Alien:
My brother is saving every cent he can find to pay for joining an expedition to find something called Noah's Arc. Supposedly, he says, a pair of every species on our planet lived on it for weeks during a worldwide flood that killed all other living creatures. He says modern scientific methods will now guide the expedition to it. He is becoming obsessed. What can I do?
You might point out to him that they might find it, by simple mapping and without travel expense, by simultaneously re-tracing the DNA trails of all
living species and the fossil trails of the extinct ones. The converging lines should lead them right to it. If it doesn't, you might suggest that he enroll in a community college that offers a course in logic.
The Alien C.W.