Jerry Maguire wrote:
What most folks don't get is that every one is different.... no exact or magic way to be great.
I know guys who hammered every day ... mega miles. I know guys who took easy days easy and ran far fewer miles.... gotta find what works for you.
Btw, what's "wrong" and why there aren't American sub 2:10 guys is more about socio-economics than anything else... far less about how slow/fast your easy days are
PLEASE explain the socio-economics of why US marathoners are terrible.
Poor people run faster.