This is a frighteningly-cool insight. If I think about a single marathon, that's roughly 1 gallon of gas for my own car. I don't know how to translate that to h

This is a frighteningly-cool insight. If I think about a single marathon, that's roughly 1 gallon of gas for my own car. I don't know how to translate that to human fuel, but it is crazy to me to think that that is not an insignificant amount of fuel the human body needs to burn to do the equivalent of a car.