Actually, it's more like every 6 000 years. 12 000 is just the multiple. Other than that I wish I could upvote this 10000x over all the political-partisan-noise-useless-crap that does NOT matter on the big scheme of things. The political brouhaha is just an emotional distraction to keep you distracted from things that really matter.
We're statistically in for one, give or take a few hundred years.
Sources: as above + suspicious0bservers + World in Peril, Ken White + Robert W. Felix (Not by Fire but by Ice)
Actually, it's more like every 6 000 years. 12 000 is just the multiple. Other than that I wish I could upvote this 10000x over all the political-partisan-noise-useless-crap that does NOT matter on the big scheme of things. The political brouhaha is just an emotional distraction to keep you distracted from things that really matter.
We're statistically in for one, give or take a few hundred years.
Sources: as above + suspicious0bservers + World in Peril, Ken White + Robert W. Felix (Not by Fire but by Ice)