What proportion of the universe can support life?

Saying the universe must be designed for life, is like saying a pothole must be designed for the puddle in it.

The Drake equation is:

N = R * fp * ni* fl * fi * fc * ne * L

where:

N = the number of civilizations in our galaxy with which communication might be possible (i.e. which are on our current past light cone);

and

R = the average number of star formation per year in our galaxy

fp = the fraction of those stars that have planets

ne = the average number of planets that can potentially support life per star that has planets

fl = the fraction of planets that could support life that actually develop life at some point

fi = the fraction of planets with life that actually go on to develop intelligent life (civilizations)

fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space

L = the length of time for which such civilizations release detectable signals into space

This is for the already inhabited planets So it should atleast be bigger than that it is probably around %0,00000000000000000000 goes a while 000000001 :)

given that 99% of matter is either hydrogen or helium, with vast empty space between blobs of it, I'd say your figures are a little optimistic

space is SO vast. unless life can exist in places we could have never imagined, probably cant exist in 99.999999999999999999999999999 keep going % of the universe...

Your estimates are way to high, there is far more space then that even in our own solar system.

Hell supports 100% get saved.

Less than 0.000000000000001%

(At least life as we know it)

so far....one planet

this is what we know