the higgs boson - Nicholas - another idea I like about gravity
   is the idea that it actually comes from another universe or
   another dimension slightly separated from us - which would
   explain why it's everywhere you go, rather like the way an
   enclosed room can get hotter and hotter because the sun is
   beating down on it - but you can't see the sun, because the room
   is enclosed. An outside force affecting the inside. "