On December 21, 2012, the Mayan calender predicted the world will meet the end. It could be the end of the old and the start of the new, as what some predicted. It could also be something natural will cause the world to end. Despite it, I doubt the world will end just because some eons-old prophecy claims to be. Here's what I point out.
Though there are references from the prophecy that would be accurate, it is all a coincidence. They claim that people will be connected in a "web". We can assume that they predicted we eventually invent the Internet, but we can also assume that giant spiders invade the world and trap us in a spider web that stretches throughout the world. They predicted two towering figures will collapse by fire and brimstone, and we can assume they are referencing 9/11 when the World Trade Center was destroyed by an airplane hijacked by terrorist. However, it can also reference when the Mayan civilization was destroyed by foreigners from Spain, burning and attacking their two towering figures, which could be their gods, or could be actual buildings. All I can sum up is if the Mayans predicted a man-sized mouse and carts that move by themselves, they could either predicted Disneyland or a dystopian future in which giant rodents terrorize the world and capturing and taking humans to their leader with their automatic moving carts.
Another reason is consider about the Mayans is their world is as big as where they are. They can never predict foreigners from other parts of the world. They never knew about Spain, France, Bavaria, or even Nippon. Having them predict the future will only reflect on what they know about their own place and on the place itself. True, they predicted their own fall of civilization, but they could never imagine the fall of other civilization, like the Romans. In a way, we can be thankful that we have the Internet, so that we can know about our world. However, the world is still only as big as the information given to the Internet. If anyone gives false claims about our world and posted on the Internet, chances are that we may believe it. Only if you can get outside and explore the world for yourself, with a help of tons of money, can you fully understand the world we live in. That's something the Mayan could never do.
The last reason why the Mayans have it wrong about our doomsday is the technology and culture we possess now. Back in their times, they don't have too much in a way of sophisticated technologies. Although they are living in a civilization, they are also surviving. They pray to their gods to help please them and eventually make their crops fruitful and their daily life easier. Hell, they even make sacrifices to better benefit their gods. So when their gods, or at least the calender left by the gods, predicted the end of the world, the Mayans can't do anything to it, because their are depended by the will of the gods. We modern people on the other hand can overcome these. We have technology that the Mayans don't have. We have science to predict the weather with accuracy, the science to communicate to others over a long distance. Eventually, we have the science as well as culture changes to become more independent, relying on ourselves (unless you think money controls society, and in this case, corporations are our new gods). In other words, we are the masters of our own destiny. No longer we rely on religion or cults to determine our fate. We determine if we can continue on living.
To conclude, we are not likely that the world will end by the prophecy created by a dead civilization. It's something that wouldn't be outcome for the Mayans to know about. With that saying, the end of the world is a real possibility, but not by the Mayan calender. I can only think of two ways for the real doomsdays: an astronomical event such as a sun going supernova, and unfortunately, the self-destruction of our own society. Remember that I said that we are the masters of our own destiny. It is more likely that we can choose to end the world with plenty of means. It can be a nuclear explosion cause by our need for more power, starting the world war to end all world wars, or it can be the abuse of the Internet that causes the fall of the our society. If there is going to be the end of the world, it's more likely that we, ourselves, will destroy the very world we live. In that case, I'm preparing for that. I'm no prophet, but I believe it's very soon for our self-destruction.