Question

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

24 comments24

Total Forecasters191

Community Prediction4.74×10⁻⁴

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My Prediction

community

<1×10⁻³¹

lower 25%

median

upper 75%

...

3.5%

5.23×10⁻¹¹

4.739×10⁻⁴

0.07618

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

0.859

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

2.44×10⁻⁴

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

0.0453

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