[renormalised (Carl)]

So, if gravitation offers force free acceleration by pulling spacetime in, towards mass - from a solitary electron to a black hole - then what's doing the pulling, what's doing the bending and warping as another massed object, in force free uniform motion, cruises along its Geodesic, and bends around the massed body?

Quantum fairies playing on cosmic strings in a supersymmetrical orchestra....didn't you know that??!!

They're playing the "Higgs Concerto in A and/or C#"