So what exactly are the powers of 2 used for, other than a general sense of "X + 1 is twice X"?
You had two examples: the weight of the car (log base 2 of 1500 is between 11 and 12) and a millionaire (log base 2 of a million is about 20). But what are the units for Agility? What's the agility required to do a back handspring over a car?
Or is just estimating? E.g., a typical human (5) can't really do a back handspring, so maybe it takes a 6 to do a normal back handspring on flat ground. A car isn't THAT much higher than flat ground, so twice as hard again feels about right. Therefore it's a 7.
A back handspring over a delivery truck, on the other hand, is an 8.
Is that the gist of it?
