Janus cosmology: what is negative mass?
This is an interesting phenomenon.<p>On the first glance, this is a modestly interesting bimetric theory of gravity, one of the many. These theories are usually considered valid science, not without issues, but at least offering some new insights. See <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Bimetric_gravity" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Bimetric_gravity</a>.<p>On the other hand, this particular theory comes from this person: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Jean-Pierre_Petit" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Jean-Pierre_Petit</a>. Even if it would have been a blinding light of scientific truth (and it isn’t), he would have a hard time convincing other scientists in its validity, because of his... other convictions.