very nice video. Surely, psychology factors play quite a part in the way market works. And also having several variables determined by such factors in chain yo

very nice video. Surely, psychology factors play quite a part in the way market works. And also having several variables determined by such factors in chain you can expect to have big fluctuations - exactly the ones that the Gaussian("normal distribution") portfolios fail to explain. the last part of the video explains an example of such chain- and the effect- the subprime crisis.