Its pretty much culture. The US is open to ambitious people from across the world unlike a lot of countries, the US is big un deregulation unlike Europe which s

Its pretty much culture. The US is open to ambitious people from across the world unlike a lot of countries, the US is big un deregulation unlike Europe which stifles a lot of their companies, there's one language, there's a culture of acceptable failure, willingness to try despite lacking experience, and slow-moving governments. Its probably more but this is what I've seen.