I'm no astrophysicist, but it makes sense to me that the sun would not wobble on its own. There has to be another heavenly body pulling on it. So this article suggests there might be another star out there, that comes close about every 24,000 years, which would explain the precession of the equinoxes - and a sidereal year. Perhaps it's coming closer, in which case maybe there'll be more comets, if the suns knock stuff out of the far reaches of each other's orbits every time they come close.
This makes the "Nibiru" thing actually seem somewhat possible.
Also, maybe we can quit blaming global warming on people now and instead blame it on this other sun?
As for a "new golden age" where everybody gets along or something like that, well, I dunno. Maybe if we all die and go to heaven.