Completely anecdotal: Back in 2001 I was in Silicon Valley on a J-1 visa. The company I was working at had three rounds of layoffs within 6 months. Seeing the d

Completely anecdotal: Back in 2001 I was in Silicon Valley on a J-1 visa. The company I was working at had three rounds of layoffs within 6 months. Seeing the decaying situation, I went back to Europe to find work there. One of the other interns (French-Moroccan guy) stayed. I had a mediocre career in Germany (though now back in the valley), whereas he went to pre-IPO LinkedIn and then pre-IPO Twitter. I'm pretty sure he did well for himself. I regret being scared of the bubble popping and going back. The situation now is much healthier than in 2001.