Encounters with Geometry — an Autobiography of Concepts

When we first learned long division at age eight I had fun working out examples where the problem was put at the top of the page and the long division algorithm computation ran diagonally down the page to finish exactly in the tiny vicinity of the lower right hand corner. I wanted to make the biggest problem that fit on one page. This was a curious metaphor of one’s serious practical limitations today in simulating 3D fluid motion on computers.