Almost 100 years after Einstein presented the general theory of relativity in a Berlin lecture theatre, the quest to spot the gravitational waves he predicted may be entering its final stages.
I am betting against finding them. I have long had the (poorly founded) notion that gravitational information propagates instantaneously, and thus, makes no waves. My guess is that gravitation is a quantum condensation process whereby space between masses decreases as a function of time.
Basically, to the extent that one mass is indistinguishable to another, it is more likely to be found in the direction of the other mass. That is, its position wave-function is skewed by another mass by a degree of indistinguishability.