Listed like that, it's clear that our rock 'n' rollers have compiled a sadly unimaginative roster of debauchery, largely relying on sex and drugs--those two tired horses of the dissolution troika.
Every rock 'n' roller does a lot of drugs and has a lot of sex. 
mnli hypothesis: Every rock 'n' roller does a lot of drugs and has a lot of sex.  premise: Listed like that, it's clear that our rock 'n' rollers have compiled a sadly unimaginative roster of debauchery, largely relying on sex and drugs--those two tired horses of the dissolution troika.