our universe contains 10^80 baryons. If the universe contained 10^21 more baryons, which is an extra 1 part in 10^59, the universe would have collapsed before life was even possible.
how much mass is in 10^21 baryons? well, the mass of a single baryon is 1.67^-27 kg. If we multiply this by 10^21, we get 1.67^-6 kg, which is 1.67 milligrams, or, about a grain of sand
so, to summarize it, the universe, if it contained an extra grain of sand's worth of mass, it would have collapsed and life would never have gotten started.
http://www.godandscience.org/apologetics/universe_too_large.html#n07
how much mass is in 10^21 baryons? well, the mass of a single baryon is 1.67^-27 kg. If we multiply this by 10^21, we get 1.67^-6 kg, which is 1.67 milligrams, or, about a grain of sand
so, to summarize it, the universe, if it contained an extra grain of sand's worth of mass, it would have collapsed and life would never have gotten started.
http://www.godandscience.org/apologetics/universe_too_large.html#n07