There is indeed the impossibility to have a european silicon valley, as UK, France and Deutschland are basically competing to impose London, Paris or Berlin. W

There is indeed the impossibility to have a european silicon valley, as UK, France and Deutschland are basically competing to impose London, Paris or Berlin. With Brexit impacting London, I think the fight will be more and more between Paris and Berlin. Paris being a true word capital, but Berlin being cheaper and more international, it's hard to predict which one will prevail.