deletions | additions       diff --git a/Imagine_trying_to_understand_the__.tex b/Imagine_trying_to_understand_the__.tex  index 9181f08..0223aa8 100644  --- a/Imagine_trying_to_understand_the__.tex  +++ b/Imagine_trying_to_understand_the__.tex 
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Imagine trying to understand the follow equation for __. Frank Drake's Fermi Paradox which estimates the number of technological civilizations that might exist among the stars.  \begin{equation}\nonumber  N =\underbrace{\overbrace{R}^{\approx10} \times \overbrace{f_p}^{\approx 1} \times \overbrace{n_e}^{\approx 0.2}}_{\sim 2} \times \underbrace{f_l \times f_i \times f_c \times L}_{?}  \end{equation}