One of the great things about being European is that we will constantly see some random city promoted as "the Silicon Valley of Europe", and the city seems to change once every three or five years.
Much of the USA is jealous of Silicon Valley's success, and they try to make themselves the next SV without actually learning why SV became successful in the first place and emulating that. So, for instance, one big reason SV has continued to be successful is the fact that non-compete agreements are unenforceable in the state of California. A SV tech employee can easily leave their job and go to work down the street for a competing company. This isn't true in most other states, and noncompete employment clauses can be common.
https://www.inc.com/bryan-adams/this-unsuspecting-european-c...
https://www.barcelonacatalonia.eu/en/microsoft-stresses-that...
https://thenextweb.com/news/barcelona-not-next-silicon-valle...