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Continuous Discovery Habits_ Discover Products That Create Customer Value and Business Value
Teresa Torres
Lindy is a deli in New York, now a tourist trap, that proudly claims to be famous for its cheesecake, but in fact has been known for fifty or so years by physicists and mathematicians thanks to the heuristic that developed there. Actors who hung out there gossiping about other actors discovered that Broadway shows that lasted for, say, one hundred days, had a future life expectancy of a hundred more. For those that lasted two hundred days, two hundred more. The heuristic became known as the Lindy effect.
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The Einstein field equations relate the Einstein tensor to the stress–energy tensor, which represents the distribution of energy, momentum and stress in the spacetime manifold. The Einstein tensor is built up from the metric tensor and its partial derivatives; thus, given the stress–energy tensor, the Einstein field equations are a system of ten partial differential equations in which the metric tensor can be solved for.
Solutions of the Einstein Field Equations - Wikipedia
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