Where did all of the philosophers go?

In the past week we having been learning about many philosophers from Thales to Pythagoras. I was thinking about how we had all of these great philosophers in the past, but for the past 50 years or so we have not had a great philosopher. This could be a result of the world advancing technologically and mentally since the times of the acient philosophers where we now know that the world isn't composed of air, wind, or water, but of atoms and the stars aren't celestial being that watch over us. Now that we understand more facts about the world we have less to philosophize about and no major philosophical breakthroughs. This makes me wonder if the age of philosophers is dying due to the advancement of society.