beorhthelm
A. Virgo, Football Genius
- Jul 21, 2003
- 36,019
Based on the fact that (if I remember rightly), the observable mass in the universe is only about 4% (that's all galaxies,planets etc), the next 26% is dark matter and the balance is dark energy (but we can't detect dark matter/energy and can only theorise it'e existence),
*if* a whole bunch of theories and assumptions about the big bang, inflation etc are valid. if theres problems and omissions in there, then the dark matter isn't needed to make the sums add up.