Comment by mistrial9

my brilliant colleague went to Zurich for a year to work with finance people on math problems. He said that it was not the culture to mix socially, he liked to ride his road bike in the good weather, and basically, he worked the entire year without making any friends or being social. Then he left. It was expensive for him at the time (no details) even as a well-paid young math programmer, so it was not a big financial win. His french is not great, so that was also a problem. He did not recommend the experience.