English is the business language of the world. I highly doubt there's some tech epicenter near Brussels that would rival Silicon Valley (or even New York City, Seattle, or Austin) if only those companies spoke English.

And sure being a Unicorn is everything, but it sure as hell isn't nothing. I have no doubt there there is a company in Europe doing something amazing, but Europe doesn't have a culture that continues to churn these companies out and I can't help but believe that their approach to regulation and taxation is apart of the problem.

They get so giddy about regulation that it's kinda baffling. Regulation should be thought of an unnecessary evil - not some exciting project.