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8 votes
0 answers
304 views

"Meritocratic" pyramid schemes

There have been a couple of times in my life when people from multi-level marketing organizations attempted to recruit me. I listened to what they had to say, and both times I did not get involved ...
Favst's user avatar
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1 vote
1 answer
1k views

The stock market polytope: explanation?

Ovidiu Racorean. "Crossing stocks and the positive Grassmannian I: The Geometry behind Stock Market." (arXiv Abstract link) Anyone care to offer a summary of what's going on here? (The ...
Joseph O'Rourke's user avatar