Taleb is the author who gained fame and fortune writing about 'Black Swans' and the impact of other improbable events ahead of the subprime mortgage market's collapse.
In an "interrogation" interview that starts in the online magazine ai5000 and is continued on its website, Taleb is quoted as saying:
"I don’t want to spend too much time on Buffett. George Soros has 2 million times more statistical evidence that his results are not chance than Buffett does. Soros is vastly more robust. I am not saying Buffett doesn’t have skill—I’m just saying we don’t have enough evidence to say Buffett isn’t doing it by chance."Continue Reading
I also suggest you read THE SUPERINVESTORS OF GRAHAM-AND-DODDSVILLE to find out why Buffett wasn't "Lucky"