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What's your Darke Number?

The Drake Equation is a famous formula for determining the probability of detecting alien civilizations. It is simply a set of simpler probabilities multiplied together to get a very small number. N = R* • fp • ne • fl • fi • fc • LN = The number of civilizations in the Milky Way galaxy whose electromagnetic emissions are detectable.R* =The rate of formation of stars suitable for the development of intelligent life.fp = The fraction of those stars with planetary systems.ne = The number of planets, per solar system, with an environment suitable for life.fl = The fraction of suitable planets on which life actually appears.fi = The fraction of life bearing planets on which intelligent life emerges.fc = The fraction of civilizations that develop a technology that releases detectable signs of their existence into space.L = The length of time such civilizations release detectable signals into space.Source: space.com It's occurred to me that the the same formula can be applied to other …

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