The document discusses the Elliott Wave Theory, which proposes that stock markets move in recurring cycles or waves. It states that each cycle is composed of shorter term waves that follow rhythmic patterns, which can be used to predict future stock prices and market trends. These waves reflect shifts in investor psychology from positive to negative sentiment. The document also examines identifying stocks that may follow the Elliott Wave Theory and investing according to their upward and downward trends, as well as weaknesses of technical analysis such as analyst bias.