!Acronym Alert! for future reference, W.I.L.T. stands for: What I Learned Today.
A reciprocal in terms of mathematics is one of a pair of numbers whose product equals 1. The ramifications are astounding. If you want to find the reciprocal of a positive integer, turn it into a fraction with one as the numerator and itself as the denominator. I'd like to comment on the philosophical consequences, but math is an utter mystery to me. Tomorrow is another day.