And why are there so many top-notch engineers in SV? Because of the climate, because there are more natural-born engineers, or because many top-notch engineers

And why are there so many top-notch engineers in SV? Because of the climate, because there are more natural-born engineers, or because many top-notch engineers have moved and move there because there is the capital and the best environment for startups? And why would you expect Hungary to have very few top-notch engineers?