Wasn’t the Mayan calendar cyclical? Meaning that as one cycle a new one began pretty much straight away and that even based on just that, let alone any scientific data, all this doomsday stuff was just a load of rubbish anyway and we had nothing to worry about at all.
I haven’t read much into it a lot so I don’t know for certain so I won’t go into large amounts of detail or preach about it because that’s just plain ignorant. If the world were going to end we probably have noticed large scale changes long before today.
Anyway that’s just one of my thoughts on the end of the world and the Mayan calendar. If you want to talk about or correct any mistakes or misinterpretation you are welcome to.