The answer wasn’t supposed to be 42?

Found this via a Tweet by @jangles

BBC News - Go Figure: What can 72 tell us about life?

You know the joke from The Hitchhikers Guide to the Galaxy in which the answer to the ultimate question about life, the universe and everything is 42? It was a typo. Should have been 72. The author, Douglas Adams, was secretly an economist and statistician who pretended to be a sci-fi writer of comic brilliance to hide his shame. Possibly….