From: dietz@dls.net   
      
   vonroach wrote:   
      
   > Chuckle...we don't know what `dark _matter_ ' is but we conclude it   
   > cannot be ordinary or normal because that would screw up our   
   > observations even though we can not observe it ...chuckle   
      
   It would have affected the isotopic composition of the matter   
   that we *can* see.   
      
   There's a similarly motivated cosmological upper bound on   
   the number of neutrino generations (since superceded by   
   tighter bounds from the decay rate of the Z boson.)   
      
   	Paul   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)