How is this for a perhaps unconventional, but I think accurate, description of the 'empty' vacuum: Without the vacuum we would be nothing....it contributes to everything around us, our very existence: The 'empty' vacuum has: ....spacetime, from which curvature arises and gives us gravity essential for the formation of galaxies, stars and planets. ...The Higgs field, from which all mass is believed to arise, ...negative gravity; that is negative pressure, also called the cosmological constant, which is responsble for our expanding universe. Otherwise the universe would be unstable and collapse upon itself to 'nothing'. comments??