look, i kept trying to find out what the ecliptic was.o 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 knows what an ecliptic is, it's don davis. and he said, well, you know, the earth revolves and goes around the sun. hey, don, no, i'm talking about go out into a field, look up at the sky, what the freak do you see? and he couldn't tell me. he was so obsessed with the concept, he couldn't tell me. well, it turns out the concept of a circle was a radical new invention when it came along, and it does not put it in your mental tool box. it takes somebody utterly reperceiving a simple thing like the circle to put it up there. it takes somebody utterly reperceiving something like the 90-degree thing where walls meet. and we have tons of these mind tools. the flat plane? that was an invention too. after people had been living with flat plane surfaces for thousands of years. so the big question is what thing right under our nose are there right now that c