abstractions and you've talked about the idea of compression how do you see this the history of science the history of humanity our civilization and life on earth as some kind of path towards greater and greater compression what do you mean by there how do you think of that indeed the history of science is a history of compression progress what does that mean hundreds of years ago there was an astronomer whose name was Keppler and he looked at the data points that he got by watching planets move and then he had all these data points and