interesting but what does that have to do with anything
back in 2010-2011, I used to post tons of Nat Geo vids and links, and several had to do with the earth and Ice cores, seemingly, something went down 5,200 yrs ago. And there is apparently a cycle. And what corresponds with 5,200 yrs? The Mayan Calendar. It begins and apparently ends every 5,200 yrs. So, earth and ice cores show that there were earth changes that correspond with the Mayan Calendar, hmmm. Make the connection.
Nature (earth) takes it's time, like the seasons, it's gradual.
Think of it like waiting for something to slow roast, or a crock pot, it takes time. This ain't the microwaveable shit, and for those who think it, will get fooled time and time again.