Word
Drake equation
A formula for estimating how many communicating civilizations are in our galaxy, by breaking one impossible question into factors that can be argued separately
Examples
Plug optimistic numbers into the Drake equation and the galaxy teems; plug pessimistic ones in and we're alone.
The Drake equation is less a calculator than a checklist of what we'd need to know.
Origin
Written by the astronomer Frank Drake in 1961 to structure the agenda for the first scientific meeting on the search for extraterrestrial intelligence. Drake has said he never intended it as a precise predictor. It was a way to organize the discussion.
How it connects
A formula famous less for its answer than for how it slices an unanswerable question into answerable pieces.
This word appeared in Breaking an impossible question into factors, the Involves connection for August 25, 2026, which asked: How do you make progress on a question you can't answer?
Check yourself
What is the Drake equation for?
Estimating the number of communicating civilizations in our galaxy by multiplying several factors.. Right. It multiplies a chain of factors into an estimate: star formation, planets, life, intelligence, communication, longevity.
What the sources establish
The Drake equation estimates the number of communicating civilizations by multiplying a series of astronomical and biological factors.
Sources
The Drake Equation (SETI Institute, 2024), Explanation of the equation's factors, purpose, and 1961 Green Bank origin