NaN, or "not a number," is a database error caused by invalid input into a mathematical calculation, such as when you try to compute numeric pi with apple strudel.

So what is knotanumber? Knotanumber is what you get when you start with a pimply, asthma-ridden, Bible belt-on, Atari-binging, Asimov-reading, never-been-kissed nerd and, through the application of epigenetic lifestyle factors and Pokemon pellets, transform him into a gently aged, distance-running, veggie-eating, anti-evangelical, badass middle manager-who is still a nerd.