Foresaw the Stock Market Crash and Great Depression  
In 1924, Cayce predicted the crash of the market after a long bull run during the late 1920's. During the mid-1920's he chronicled the rise and fall of the stock market, teaching his clients how to play the bull market and how to prepare for the crash of 1929. He even outlined what growth industries would give them the best long term portfolio after the market reached bottom. Cayce should have been quite well-to-do with endowment from a share of their speculations, but his clients did not pay attention to the readings and failed to pay heed to his warning. Six months later, they lost all they had when the great October 1929 Stock Market Crash occurred. This was also the trigger for the Great Depression which Cayce also foresaw. In 1931, Cayce foresaw that the Great Depression would lift in the spring of 1933 which it did.

Edgar Cayce (March 18, 1877 - January 3, 1945) was an American who claimed to be a psychic with the ability to channel answers to questions on various topics while in a self-induced trance. Though Cayce considered himself a devout Christian who lived before the emergence of the New Age Movement, his work and timeline lead many to believe he was its founder and influenced its teachings.

1877 to 1920: Kentucky period

In December 1893, the Cayce family moved to Hopkinsville, Kentucky and occupied 705 West Seventh, on the south-east corner of Seventh and Young Street. During this time, Cayce received an eighth-grade education; discovered his spiritual vocation;[4] left the family farm to pursue various forms of employment (at Richard's Dry Goods Store and then in Hopper's Bookstore, both located on Main Street).
Cayce's education stopped with the ninth grade because his family could not afford the costs involved.[3] A ninth-grade education was often considered more than sufficient for working-class children. Much of the remainder of Cayce's younger years would be characterized by a search for both employment and money.
Throughout his life, Cayce was drawn to church as a member of the Disciples of Christ. He read the Bible once for every year of his life, taught at Sunday school, and recruited missionaries. He is said to have agonized over the issue of whether his supposed psychic abilities-and the teachings which resulted were spiritually legitimate.

Edgar Cayce

Another disturbing prophecy comes of great psychic of the 20th century. Edgar Cayce was known as "the sleeping prophet." He would go into a hypnotic trance in which he gave thousands of readings on different people. These dealt with past lives (including Atlantis), medical help and prophecies/predictions for the future. While not all of Edgar Cayce's predictions came true, a good majority of them did. He was dead-on when it came to most of the medical remedies he gave and doctors and scientists could never explain it. What Edgar Cayce was doing was tapping into the Akashic Records - a sort of library of everything residing in the higher planes. For more on any of that, you might want to check out the Dreams & OBE's section. I'm also going to leave the Edgar Cayce biography for another place since this section deals with Armageddon and this article could get a little lengthy.

Predictions 2011
After March 2011, the revolution wave will settle down into a period of reformation.
In 2011 there will be a coastal phenomena, will be gradual … the situation will be “disturbing” for many people. (Japan Nuclear Disaster)?

Unusual movements of the moon by anomalies in the magnetosphere could cause coastal disruptions. (Still to come because of Elenin) ?

The magnetosphere problems would lead to ultraviolet scorching of food crops, grain crops will fail mainly in the northern hemisphere leading to riots during the winter
.
Riots in Rome will spill over into the Vatican.

Extra-terrestial Aliens and/or warfare possible.

12.18.16.2.6 is the Long Count date.

3 Cimi is the Tzolkin date.

4 Zotz is the Haab date.