What arguments? All they said was “Bullshit”.

You just claimed something to be true without even making an effort to explain, why you think it should be true. This is not a valid thing to do, not only but particularly if you want to abstract the whole world away, ignore all social, economic and historic reasons, why things are like they are, to boil everything down on "tax laws". Even trickle down economics is more rooted in reality than this utter bullshit. In contrast, I presented a reasonable and nuanced explanation that even brought two different aspects to the table instead of trying to force the whole world into a monocausal and - no offense - mind bogglingly stupid explanation.

That is not all. I could even disprove your claim easily, but you say, I was the one without the arguments. You are the pigeon, my boy.

He literally argued against your conjecture. This is his comment.

low taxes, lax regulations, massive tax break

I call complete and utter bs. If taxes were a reason, Silicon Valley would be on Virgin Islands.

Ireland and Malta are the countries most overseas tech companies (and gambling and porn companies) choose as their European seat, not because they have an amazing amount of great skilled talent, but because they have really low taxes and regulations.

And this proves your view being overly simplistic and unconnected to the real world. They chose to settle their profits in these countries, not their development.

Also, the EU really doesn’t want companies that are so big and important that they are more powerful than the government.

Dude, holy shit. You're confusing the EU with China.

Lastly, another issue is that the EU, when handing out money to companies, prefers the Airbus model. Instead of concentrating everything into one city, like in Shenzhen or Silicon Valley, they like to spread everything out over all of Europe.

That's at least an interesting thought but probably neglectable in the bigger picture.

The real reason is, that you need talent and you can attract global talent with the global highest pay. US was rich before, so global talent naturally gravitated towards it. Furthermore and probably foremost, the US were decades ahead of most countries after WWII. It is no suprise that computerization happened there first and that subsequent business models like private operating systems could develop there first, as a very result of that. Everything boils down to the trajectories of the war.