Bedtime stories.pic.twitter.com/xMSTB1DRNM
The book has one of my all-time favourite sections, beginning with "how can people scared of fractions hope to understand advanced theoretical physics", and then proceeding through a 3-4 page explanation of fractions as ordered pairspic.twitter.com/gdbCNhc7nU
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The whole book is like that, alternating the impenetrable with the wonderfully illuminating. It may be the best popular book about physics ever written for professors of theoretical physics. And I think - though cannot be sure - it's pretty great (in places) for most humans!
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Here we have it: fractions as equivalence classes of ordered pairs of integers. Admittedly, Penrose then explicitly disavows such formality. It's a wonderful, maddening, brilliantly illuminating book.pic.twitter.com/LJNwWogAOM
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