Is There Any Good Evidence that Jews Are Smart?
The real-world evidence that Jews tend to be smarter than average is everywhere around us(Steve Sailer does a good job summing this up). But I found the argument by La Griffe Du Lion to be the most compelling. He uses as his study subjects Grand Master chess players in the old Soviet Union. The Soviet Union was not a place where Jews were favored, but chess was life and death in Russia and the regime wanted to make certain the best talent was steered into the game, Jewish or not. He looks at the Grand Masters over the years and finds preposterously high numbers of Jews in their ranks. He is able to extrapolate from this an average IQ of 118.