What i'm trying to say isn't just the mayan calendar, there are multiple SCIENTIFIC phenomena occurring in 2012 that are possibly dangerous, including incresed activity in the sun, peaking in 2012 which could cause a large solar flare, a large meteorite set to pass within a million kilometres of earth that could be pulled into the earth by gravity.
It isn't just the calendar, science has stated there are many possibilities of the extinction of the human race in 2012.
Honestly, I don't beleive the world will end in 2 years time, i think it will all continue living and all, but people don't seem to realise there are other resons behind the possiblity than the mayan calendar.
And also, the mayans DID believe the world was going to end in 2012, their calendar didn't just stop there.