Survivorship bias can apply to things other than literal survivors.
What I mean is that, since they're in Berlin, they're mostly interacting with other people who live in Berlin. They're not going to hear from people who don't want to live in Berlin, even if those exist.
What I mean is that, since they're in Berlin, they're mostly interacting with other people who live in Berlin. They're not going to hear from people who don't want to live in Berlin, even if those exist.