One of my informal theories is that a great deal of human performance metrics span about an order of magnitude. A very strong person is about 10 times stronger than a very weak person. A very fast person is about 10 times faster than a very slow person. In particular
- There are some for whom a marathon is just a training run.
- There are some for whom a 5k is just a training run.
- There are some for whom 500m is just a training run.
- There are some for whom walking is just a training … walk.
It is very interesting how wide the range can be. I use it as a reminder: Whenever I think I have accomplished something which I think of as impressive there are probably someone out there for whom what I just did was routine.