|If you look again at the factors Fsph,
Fgae und FLiz you can add the
Fsph = 1:15,000 is the probability for a planet in the habitable zone of a sun-like star..
For Fgae = 1:691 1:69 only one range could be determined so far.
If up to 10 "Earths 2" will be found within the next 20 - 100 years, it will be possible to specify both parameters (Fsph, Fgae) with sufficient accuracy, i.e. statistically significant figures will then be available.
Values determined so far for FLiz:
The accuracy of these values will
only be sufficiently clarified when mankind itself begins
to operate interstellar spaceflight, i.e. according to
theorem 6.1.2 in 100 to 200 years, and can verify the
distribution of life or intelligence and civilization in
the galaxy itself.
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