Absolutely, but as I said it's the effect that we can detect, not the actual force itself. At least to my vodka-soaked brain - I'm thinking of Star Trek style graviton detector things.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
