Beautiful, damn hard, increasingly useful. That's fractals.

Although computer memory is no longer expensive, there's always a finite size buffer somewhere. When a big piece of news arrives, everybody sends a message to everybody else, and the buffer fills

If you assume continuity, you can open the well-stocked mathematical toolkit of continuous functions and differential equations, the saws and hammers of engineering and physics for the past two centuries (and the foreseeable future).

When the weather changes and hurricanes hit, nobody believes that the laws of physics have changed. Similarly, I don't believe that when the stock market goes into terrible gyrations its rules have changed. It's the same stock market with the same mechanisms and the same people.

For much of my life there was no place where the things I wanted to investigate were of interest to anyone.

The techniques I developed for studying turbulence, like weather, also apply to the stock market

An extraordinary amount of arrogance is present in any claim of having been the first in inventing something.