Is it any biased view from a viewpoint of a big country, where you have many chances to change laboratories/universities/working groups, vs. a small one?
Suppose you are from a small country when there is only one laboratory in your field and you want to stay in that country due to family reasons. Then you probably have these options:
- stay there and get published with your supervisor;
- move to another country for some years and come back (and you will end up with your supervisor);
- move to related field and you will probably end up with some sort of collaboration with your supervisor anyway.
Are these options considered "weak" from an academic's perspective?