"I jumped horses over big dangerous fences in competition. And got very, very good at it, at quite a high level. And I realized long since that, yeah, it's the same thing that appeals to me about it. You can't think about anything else, in either case; jumping horses in competition, show jumping, or flying an airplane, for whatever purpose."

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If you look at coastlines, if you look at that them from far away, from an airplane, well, you don't see details, you see a certain complication. When you come closer, the complication becomes more local, but again continues. And come closer and closer and closer, the coastline becomes longer and longer and longer because it has more detail entering in.

— Benoit Mandelbrot