because the babylonians did not invent the angle at all.es, the babylonians had t 0-degree -- 90-degree angles. if they didn't get those exactly right, off with your head, you know? the zero was made to absolutely awe and impress and overwhelm rival kings and make everybody want to come to babylon, for god's sakes, and view babylon as everything good in the world. and if it fell down because your 90-degree angle wasn't right, it was going to make your king a laughingstock, and he would not be kind to you. so, yes, they managed to make 90-degree angles, be i they didn't -- but they didn't even have a special word for a right angle. so you have to go back and rethink from scratch. so the best way to do science is to go back and imagine what it's like not to have any of these concepts concepts and what it's like to be looking at the world around you. look, i kept trying to find out what the ecliptic was. so i -- every week i run a meeting, and my friend don davis appears in the meeting, and he's the world's leading space artists. so if anyone