Doctor Krauss,

My question may seem a bit whacky.

Is there a simple experiment or observation to prove that the following scenario is not possible?

Rather than the current belief that gravity is an attractive force - gravity is actually a repulsive force.

Consider the following possibility:

There is a repulsive force (per unit volume) in the whole universe and/or possibly external.

This force interacts weakly with matter and is also weakly attenuated as it passes through matter.

Rather than objects being pulled to each other because of their inherent mass, they are actually pushed together. This happens because as the force interacts with matter and is attenuated by it, a “shadow effect” is created between objects causing an unequal “Push” in the volume between the objects. The “push” between the objects is smaller than the “push” from all other directions. Thus the objects come together.

Depending on the degree of interaction and attenuation between this “force” and matter, this “force” could possibly be extremely large.

Sound whacky? Sure, but is there an obvious way to show that it IS whacky?

Richard Dils