This past Sunday, as I was driving home after being at church, our car rolled over 100,000 miles as I was driving across the Ohio River. That 100,000 miles is the equivalent of driving the circumference of the earth (at the equator) four times over. That is a lot of miles. We bought that car in mid-2013 around the time I bought my first fitness tracker. In approximately the same amount of time that we’ve driven 100,000 miles, I've walked or run nearly 37,000,000 steps which works out to nearly 17,000 miles.