Ah, me. Didn't mean to open a can of worms.

"Infinity" is not a number, and cannot always be manipulated as everyday numbers can. Sometimes this leads to conclusions that sound counter-intuitive; common sense learned from numbers does not always apply.

Long and loud and contentious arguments all to often are based on the unhappy fact that the parties are not defining the term the same way.

Onward! Look at the original self-referential wordplay and smile. Next factoid, please.