Mike, I wish I had been introduced to you and your enthusiasm for mathematics in my teens instead of my 30s. But still, I'm glad to know you and your work. I enjoyed the background on what the shapes have meant historically. Tetrahedron = fire, etc. I had realized that you were a juggler and that you went to clown college, but I didn't know that you were a trapeze artist. Or if I did know, I had forgotten. You must have one of the most interesting CV's out there. Do you have any video of your trapeze/circus days? Do you keep in touch with anyone from your circus days? I'd be very interested to know more about that world. I imagine it is fascinating. Bible, Kuran and Euclid's Elements. -Thanks for that bit of trivia. Regarding the history of polygons, you mention that the square represents justice. I wonder why people that are uncool or not desirable are referred to as being "square?" Do you know the reasoning there?