this is for holding javascript data
Matteo Cantiello edited fc.tex
about 9 years ago
Commit id: 60e3b8e2dbbb1082f27fd119b293820f64de7c31
deletions | additions
diff --git a/fc.tex b/fc.tex
index 70e6178..950272a 100644
--- a/fc.tex
+++ b/fc.tex
...
The next factor in the Drake equation measures the \textbf{probability of life evolving into "intelligent life".} Intelligence gives a clear evolutionary advantage and therefore it might represents a common pathway of life. Broadly speaking on Earth intelligent life has appeared at least a couple of times (\href{http://en.wikipedia.org/wiki/Cetacean_intelligence}{cetacean intelligence}). However we need to consider that
the transition from simple microbial life to complex animals was a very long process. On Earth it took more than 3 billion years for life to evolve from single-celled bacteria to Homo sapiens. Therefore the same reasoning used for estimating $f_l$ might argues for a small value of $f_i$.
Overall this term is very uncertain; using Frank Drake optimistic guess one has $f_i = 1$.