Question

Drake's Equation 7th parameter L: For how many years does a civilization remain detectable?

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6.9%

521.4

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15.5%

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Discussion page for the Fermi Paradox question series

Drake's Equation 6th parameter f_c: What fraction of planets with intelligent life are capable of interstellar communication?

0.165

Drake's Equation 4th parameter f_l: On what fraction of habitable planets does any form of life emerge?

5.76×10⁻⁴

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Authors:

googolplexbyte

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Discussion page for the Fermi Paradox question series

Drake's Equation 6th parameter f_c: What fraction of planets with intelligent life are capable of interstellar communication?

0.165

Drake's Equation 4th parameter f_l: On what fraction of habitable planets does any form of life emerge?

5.76×10⁻⁴