1. All you can eat sushi places should not exist. Why do they?
3. Simpson's and Fermat's Last Theorem (via Ontario Math Links)
\[3987^{12} + 4365^{12} = 4472^{12}\]
The point of this post: Economic reasoning can be used to "prove" things that are patently false, like the non-existence of all-you-can-eat sushi. And sometimes "inefficient" choices are actually reasoned responses to something missing from the economist's model.2. Issac Newton: Man, Myth, and Mathematics (pdf link)
In roughly a year, without benefit of instruction, he mastered the entire achievement of seventeenth century analysis, and began to break new ground.
3. Simpson's and Fermat's Last Theorem (via Ontario Math Links)