¶ Spherical Triangle Sequence
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Index Entry
Spherical Triangle Sequence:
"or whatever it is, and you go around, its mild thickness, you go around its back. And whether you like it or not you have divided the surface of the blackboard into two areas. Anything that comes back into itself is a closed system. And all systems, in fact thinkability, does that. What we call thinking is trying to find out how it does return upon itself: What is the outline of that man? What is going on? What is on the other side of the Moon? I have got to get all the sides in order to understand it.
“I think this Moon thing is typical of seeming to be a plane. You didn’t have to think about the other side of it. This is typical of yesterday’s way of thinking. Things were just a disc. But even if it was a disc you could have another side. As a coin does. Now, once you are operational, you realize that if you take the unit surface of any system, whether it is symmetrical, a nice regular thing like a sphere, or whether it is a blackboard with very thin edges but nonetheless it has surfaces and it has backs. It might be a triangular blackboard, a broken piece of slate, but it has this back. And when you then draw any closed line coming back on itself, whether it is a triangle or a circle,”
