This is rather a curious question based on future career after PhD, looking at the crisis in academic/teaching job market.
If one completes PhD with pure mathematics (Algebraic Number Theory) with few good(not excellent) publications and to some extent good background (not excellent). Assume they are not ga enius but they are hard working. Assume they are searching for a permanent job in college/university teaching but is suffering while there are options to work as post-doc/research associates for them.
Exclude the possibility of getting a permanent teaching job. Can one prefer to work as a post-doctoral/research associate throughout ones whole (at least upto 40 years) career including several institutions and in any country ?
How long can a researcher remain as a post-doctoral/research associate in several institutions and several countries, in algebraic number theory, in their career ?