sad thing is, nibiru comes every 3600 years and wipes out half the population in its path. so the aftermath may be sever. worse then anything we dealt with before. i am beginning to think this may be how the dinosaur may have been wiped out, as this land use to be a tropic area. so yes the pole reversal has happened and will happen again in the late future.
If it wipes out half of the population we'll still have 3.5 billion people which is what it was at around 1965 or so. I think that's actually pretty good news. We should be fine.