> It is one of those careers where you either make it before you are 25 or you are replaced. Unless you are some prodigy who started college early, you won't e

> It is one of those careers where you either make it before you are 25 or you are replaced. Unless you are some prodigy who started college early, you won't even have a PhD until you are 27 and many STEM fields tend to require multiple years of post-doc work before you can get a professorship due to the number of qualified candidates (unless you are working under a different definition of making it).