It suddenly occurred to me today in the midst of mundane morning human activities, that this mystery of dark energy/matter, the overwhelming unmeasurable 'stuff' in the universe,(which equates to more then 85% of the total mass of the universe) and gravity which appears weak, but is EVERYWHERE, is the same DAMN THING! Is it only a coincidence that the mystery of gravity, that is the fact that is the least understood of all the major forces in the universe, and DE/DM, a relatively new concept in astrophysics, is equally not understood? There HAS to be a connection... Space-time must has MASS..but cannot be quantified within our current methods of measurement..