I did a PhD to learn and to contribute some small bit to our collective knowledge. I didn't do it to be rich nor famous. As far as "waste of time" goes, there i

I did a PhD to learn and to contribute some small bit to our collective knowledge. I didn't do it to be rich nor famous. As far as "waste of time" goes, there is nothing to me more important than contributing to the worlds knowledge. Pop stars come and go and the rich are forgotten and irrelevant just as fast. Knowledge is the only thing that accumulates and continually helps future generations.