If it had something to do with our sun, we'd be noticing changes in it's color.If it had something to do with a planet colliding with us our gravitational push or some stuff would forget up.What are the other theory's on how it would end.
I'm more worried of what stuff will go on with people when it's the 21st.
What are the other theory's on how it would end.
aliens visited the Mayan people, and told them when they were gonna fire this huge weapon at us, and so they adjusted their date system things to that inevitable event
12 hours until we all get raped by aliens