I don't see any relative change between Germany and Eastern Europe that would cut down on its brain drains (or economic migration cycles.) I think countries comparable to Japan have much less migration possibility for whatever combination of reasons.
> It's ok to post stories from sites with paywalls that have workarounds.
> In comments, it's ok to ask how to read an article and to help other users do so. But please don't post complaints about paywalls. Those are off topic.