Unless they are on the front of a winning lottery ticket, numbers generally give me a headache. They told me in school that unless I knew the definition of pi I would end up homeless and worthless. Fortunately, I have survived more than four decades in the workplace without ever having to calculate the ratio of a circle’s circumference to its diameter on a flat plane surface. It never came up once in a job interview. And so it should come as no surprise that I can’t wrap my mind around a number such as 16 trillion and how the …