I remember reading somewhere that of all European cities, Berlin has the most freelancing-oriented, startup-oriented, so Silicon Valley-ish business culture. This could be relevant as it tends to mesh well with Rationalism IMHO although in ways I am not 100% sure I understand. But "Berlin freelancers" is almost a stereotype now.

I don't know the details, I wasn't there since way before the Wall fell. I assume things must have changed a bit :-))

Also, what facilitated the freelancing/startup culture in Berlin? Here in Vienna people seem to be really loyal to their jobs, less of this kind of dynamicity. Is Berlin significantly less credentialist? As it is AFAIK a well-known problem in German-speaking cultures that businesses would e.g. value more employees who have a university degree in programming vs. employees who simply learned it on their own and do it well. I think the common name for this is credentialism. And it seems to me that this stick to your job culture here is due to credentialism, that people can only be employed in their official profession. So I would imagine a more dynamic business culture could come from less credentialism.