master -> jobjob
Each year that you spent on some job,
you earn, most important of all, some cash to keep the family financially safe.
** you also earn something to plow back. Look at my UChicago experience…
you earn some experience, insight, and hopefully some zbs, but most of it will not be relevant in future jobs
you earn/build some track record that helps maintain marketability.
you either speed up or slow down brain aging
you incur stress
you incur sacrifice of family time and exercise time