There comes a time in one's life when the math content in an academic paper far exceeds your capabilities.
You might feel a slight tingle of inadequacy and dissapointment, much like the one felt when hitting a triple bogey on a par three golf course.
You will try to remember the good old days.
You might even go as far as saying, "I should have been a pastry chef instead".
And then, only the llamas will understand...