The videos reached me at Dad Hours: lightly faded on the couch at 9 p.m. on Saturday night, my wife out with her girlies, all quiet on the baby monitor. All of a sudden my timeline was taken over with footage of the mercurial country music wizard Sturgill Simpson playing a cover of The Allman Brothers Band’s 1970 classic “Midnight Rider,” and—best I could tell from a shaky iPhone upload—doing it with the precision and bonhomie of a jam band that is actively getting away with murder.