For a lazy student who can only score lower 30 out of 100, it would be much
easier
for him to double that score if he stops playing and starts working hard
than someone who already scores 95 to inch up 4-5 points. This applies to
salaries to most people in the world.
For a postdoc who makes in the mid 40K range, it is much easier for him to
double that salary if he lands a normal job than some IT guys to double his
current salary of $100K. Everyone knows salary rise cannot be linear ...
congrats to louzhu!