There are multiple speculations as to the significance of 12 21 2012.
This date is the last date on the Mayan Calendar.
For many, this is a prediction of the end of the world.
To others, it means a significant change in lifestyles.
The Mayans are very famous for their expertise in mathematics and astronomy.
Therefore, many scientists believe the significance is related to the alignment of the stars.
Apparently, on this date, the earth will align with the sun and the Milky Way.
Science predicts a polar shift is possible within the next few years.
If this happens, mankind is unlikely to survive.
A polar shift would cause mass destruction on earth.
We're talking about earthquakes, tsunami's, hurricanes, tornadoes and possibly another ice age.
Many people also believe that this alignment will cause some sort of enlightenment to mankind.
Maybe this has something to do with brain usage.
Humans use a very small portion of their brains, maybe this alignment will somehow wake up the portions of our brains that we have been unable to use so far.
Many predictions have been made over the years as to the significance of 12 21 2012.
Nostradamus believed that earth would be struck by a comet or have a near miss with one.
He believed this would ultimately cause the beginning of World War III.
Edgar Cayce, the most famous psychic of the 20th century, believed that the earth would experience a magnetic pole shift.
This would ultimately be the cause of the end of life as we know it.