> Take people like George Soros. He does one thing. He’s about currency trading, and he’s really really good at it. You don’t see him suddenly going full scale into the real estate market, do you?

Only for sufficiently large values of "full scale".

http://www.nytimes.com/1993/09/09/business/soros-real-estate...

http://www.independent.co.uk/news/business/british-land-in-j...