Calculate Number of Communicating Civilizations in the Milky Way
average lifetime of communicating civilizations
(
L
)
fraction of civilizations that communicate
(
f
c
)
fraction of lifebearing planets that develop intelligent life
(
f
i
)
fraction of Earthlike planets that develop life
(
f
l
)
fraction of stars with planets
(
f
p
)
average number of Earthlike planets per star with planets
(
n
e
)
rate of star formation in the Milky Way
(
SuperStar["R"]
)
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