Amazing Sprinters
Usain Bolt is an amazing sprinter. So is Andre De Grasse.

Jesse Owens was an amazing sprinter.

This video gives some insight into how Owens and De Grasse might compare, courtesy of the Bronze-medal winning Canadian.
https://youtu.be/jas9ff0hdFI
I love studies that attempt to tease out the effects of technological help from the purely innate ability of athletes from different eras. Baseball is ripe for lots of these.
Aside: It may be that what I hate about the Olympics is simply NBC's amazingly crappy coverage. For 2018, I may try to find a way to VPN into the UK and stream the Beeb.