Everyone capable should try running 20 miles at least once in their life, with or without music.. there are merits to either experience.. and unless you’re trying to win money.. in my opinion just disregard that arbitrary marathon shit, and indulge your account in some of those god given 5/10 finger multiples, i’m honestly even a bigger proponent of running by time 1 hr 2 hr etc…running 20 miles in 2 hours feels nice it’s nothing crazy but everyone is different just get there somehow figure it out it’s easier than you think