Overheard in a high school classroom after a presentation on nuclear proliferation…
Student A: “So, if we had a nuclear war, we would have nuclear winter and we’d all die?”
Presenter: “Yeah. If Russia and the U.S. had gone to war, we all could have died. It would take 400 nuclear explosions to produce enough debris to block out the sun.”
Student B: “So, how many nuclear winters have we had?”
Presenter: Dumbfounded silence at stupidity of classmate. “Ummm….none….”