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How Many Halls Does a Straw Have?
Maths is really about thinking through things and finding different points of view on the same thing. We need more of that in the world, because there's too much not having a good way to come to a good conclusion. If you think about a straw as a solid object, then it is like a torus, which I believe that we're going to come back to,. Which is like a donut. And so, if you then flatten out your torus,your donut, your donut with a hole, it has to have a hole in it, not a jam donut.
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