What would you do with advanced warning? When it's over - it's over. It's not like you need to worry about your will or anything. Don't need to worry about revenge. Sounds like all such things would be taken care of in a one fell sweep.The mayan's had a good calender due to agriculture ..A great feat...But they couldn't calculate the 365.333333333... So eventually ,whether they realized it or not ..The calendar slowly goes out of sync / out of date...
Sorry if I spoiled the fun..Although , I will say Far more bizzare things can and have happened .. Keep lookin to the sky ...1 day the prophecies may be proven true ... Self fulfilling..(enter twilight music here)
Let's hope we get some advance warning before it's almost over..