Crossword hijinks

I've often heard it said that doing crosswords keeps the aging brain sharp.

And it's well-known that the codebreakers of Bletchley Park were recruited for their fascination with crosswords as well as for their mathematical skills.

But this mug's claim is a new one on me. Still, the idea that the crossword is an attempt to create order out of chaos has a certain appeal.

Should have bought that mug as a kind of amulet. Maybe drinking coffee from it while doing crosswords would have helped me organize the chaos of my writing...