Fermi Paradox, Drake Equation, and the Great Filter: SETI’s Guide Through Uncertainty

To the point

SETI researchers use the Fermi paradox and the Drake equation to frame how many extraterrestrial civilizations might exist and why we haven’t detected them, while acknowledging major uncertainties in factors like how long civilizations last and how likely intelligent life is to arise, with voices such as Enrico Fermi, Frank Drake, Carl Sagan, Jill Tarter, Kaitlin Rasmussen, and Jason Wright weighing in.

The Fermi paradox and Drake equation: Where are all the aliens?
planetary.org

The Fermi paradox and Drake equation: Where are all the aliens?

Theoretical work in SETI, the search for extraterrestrial intelligence, is dominated by two key concepts: the Fermi paradox and the Drake equation.