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googolplexbyte

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Member SinceAugust 2017

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165 forecasters

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

Current estimate

25.3k years

176 forecasters

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

Current estimate

0.154%

164 forecasters

Drake's Equation 5th Parameter f_i: On what fraction of habitable planets with life does intelligence evolve?

Current estimate

9.46×10⁻⁴%

192 forecasters

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

Current estimate

9.27×10⁻⁴%

178 forecasters

Drake's Equation 3rd parameter n_e: What is the average number of habitable planets per star?

Current estimate

0.0521 planets/star

176 forecasters

Drake's Equation 2nd parameter f_p: What fraction of stars form planets?

Current estimate

0.875%

155 forecasters

Drake's Equation 1st Parameter R∗: What is the average rate of formation of suitable stars (stars/year) in our galaxy?

Current estimate

4.47 stars/year