Hi All, I don't know whether to post this in quantum field theory or in cosmology. Maybe this stuff is one subject, not two. Hajdukovic published some papers recently which seem very intriguing even to an amateur like me who doesn't understand it. Here's the latest one: http://www.springerlink.com/content/f723g0856r4412w3/fulltext.pdf Then I thought about the OPERA/CERN neutrino speed experiment, which is not yet confirmed or denied good enough to lay it to rest. Next I thought I read that a neutrino is considered its own anti-particle. Hajdukovic's hypothesis is that anti particles have anti gravity, and a virtual pair makes a little bit of gravitational dipole. This is similar to where a virtual pair of electron-positron makes a little bit of electric dipole which shows up as part of the Lamb shift or the Casimir effect. But this is gravitational so it's not like an electromagnetic field, unless we want to talk about certain other guys' electromagnetic theory of gravitation which appears to be the best flame bait in all of physics! Anyways, the action of these dipoles could collectively explain that Dark matter isn't a distinct form of matter as such, but rather a zero-point effect. Actually it explains a lot more than that in terms of the CDM-searching observations that people have made. For this to be true, anti-particles have to have anti-gravity, which might be experimentally provable but darn hard to do. If Hajdukovic is right, then wouldn't neutrinos and anti-neutrinos really be distinguishable, but solely by gravitational polarity? Any expert may be able to correct my major misinterpretations where I said a neutrino is it's own anti-particle, what the heck does that mean? Well, that's my problem, not yours! Might this have implications for the OPERA/CERN neutrino speed experiment?