Well, that leads us to the period where a tool that I was using, the fractal dimension, was increasingly important and increasingly ill-understood. I came to mountains not because of their beauty and because of my attraction, but because I needed a neutral example to show that fractal dimension was something you could look at. But I think it is interesting in terms of the biographical and the sociological aspect of my story - how my life orbit which is so complicated, so involved, reflects upon our educational system. To consider the following- suppose someone would have the idea that certain techniques could apply, mathematical techniques that could be used to represent the structure of mountains. How could a person proceed? Would he write a report to the National Research Council, the CNRS, National Science Foundation, saying, "I would like to receive a hundred thousand dollars, or two or three or four hundred thousand dollars for myself and collaborators to seek formulas to make forgeries of mountains"? Totally ridiculous, and it would be never accepted. There are some tasks that are simply too ridiculous and either represent non-professional attitudes of the applicant, or represent just folly. I was fortunate at IBM that I didn't have to tell anybody what I was going to do. We did that on Sundays, nights, and besides I was being given an enormous amount of leeway in these affairs, and there was a good understanding that when the computer was not used, there was no need, no reason to do bureaucratic things about it. It could be used by anybody for any purpose. Almost all of it went to waste, but if the computer had been under lock and key everything would have gone to waste. So the few things that were very successful were a justification for a liberal availability of tools.