It's really crazy how just a few months ago Facebook's long-term prospects were worth just 1/3 of what they are now! What do you think changed so much during that time to warrant the 3x increase?
Did you just learn this in Finance 101? The real stock market is priced based on many factors including interest rates, future growth expectations, etc, but the biggest factor of all is psychological.
Yes, but I think that is because investors rationally realize that the future is extremely uncertain and complex so it is better to weight towards shorter term more predictable outcomes.