My personal theory is that if anything, that date will entail a geomagnetic reversal...
This phenomenon appears to have an event calender involving both Core related changes and cosmic events... So with people so obsessed with "counting natural events," it wouldn't seem that hard to predict.
By observing the earth's crust at spreading centers such as the mid Atlantic ridge, you can find that these reversals have occurred as close together as 50,000 years
and the last one we had was over 780,000 years ago. So basically we are due, and we know it
There is an event known as the "South Atlantic Anomaly" occurring today. in this area the magnetic field of the earth is shifting and de-stabilizing to around a 10% decrease in strength.