Daily Archives: December 26, 2009

Mysterious duality

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In theoretical physics, mysterious duality is a set of mathematical similarities between some objects and laws describing M-theory on k-dimensional tori on one side, and geometry of del Pezzo surfaces on the other side.

In theoretical physics, mysterious duality is a set of mathematical similarities between some objects and laws (and perhaps all of them, if the conjecture is extended appropriately) describing M-theory on k-dimensional tori (i.e. type II superstring theory on T^{k-1} if k is positive) on one side, and geometry of del Pezzo surfaces (for example, the cubic surfaces) on the other side.

— Wikipedia on Mysterious duality

2009.12.26 Saturday ACHK

Perseverance

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Perseverance is important because, in a startup, nothing goes according to plan. Founders live day to day with a sense of uncertainty, isolation, and sometimes lack of progress. Plus, startups, by their nature, are doing new things — and when you do new things, people often reject you.

— Founders at Work, Jessica Livingston

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2009.12.26 Saturday ACHK