The downside of early-stage investing is losing 1x your money, but the upside is that you make 1,000x - this is where you should focus your attention.
Instead, I think it’s something more deep-rooted - in the UK, the ideas of taking risk and of brazen, commercial ambition are seen as negatives. The American dream is the belief that anyone can be successful if they are smart enough and work hard enough. Whether or not it is the reality for most Americans, Silicon Valley thrives on this optimism.