MOSCOW (Reuters) - Commodities investment guru Jim Rogers stepped into the U.S. subprime fray on Wednesday, predicting a real estate crash that would trigger defaults and spread contagion to emerging markets. "You can't believe how bad it's going to get before it gets any better," the prominent U.S. fund manager told Reuters by telephone from New York. "It's going to be a disaster for many people who don't have a clue about what happens when a real estate bubble pops. "Real estate prices will go down 40-50 percent in bubble areas. There will be massive defaults. This time it'll be worse because we haven't had this kind of speculative buying in U.S. history," Rogers said. "This is the end of the liquidity party," said Rogers. "Some emerging markets will go down 80 percent, some will go down 50 percent. Some will most probably collapse." read more here