Very true, I preemptively assumed someone would reply 'What about Spain?' but then whether you consider the civil war part of WW2 or not is irrelevant given it had the same effect.

Ultimately, a company like Stripe sits on top of a fragile patchwork of societal/technological abstractions that are a byproduct of generations of compounded wealth.

Humans battling in the marketplace builds this compounded value, humans battling in warfare destroys it and makes you start from zero.

Just as the industrial revolution started decades before humans began leaving the farm en masse, the digital revolution started decades before anyone had a personal computer on their desk.

Europe was busy rebuilding firebombed cities and industrial capacity, while Americans were free to birth the next layer of abstraction post-WW2 (the digital one). This early lead compounded. Moral of story: don't get in wars on your soil.