Here is a link from my database that I have never reviewed. Does this go to the UFO Napster or the Bologna hall of fame?
Jack Sarfatti has been exploring a generalisation of David Bohm's ontological interpretation of quantum mechanics, extended so a particle is not just guided by the quantum potential, but, in turn, through backactivity modifies the quantum potential field. Backactivity introduces nonlinearity into the evolution of the wave function, much like the bidirectional nonlinear interaction of spacetime and matter-energy in general relativity.
The effects of backactivity are negligible in interactions at the atomic scale; divergences from the predictions of conventional quantum mechanics would be manifest only in systems where quantum coherence occurs at the mesoscopic and macroscopic scale. Sarfatti suggests that this post-quantum backactivity may be involved in various phenomena as follows: