There are a lot of people using technology that are playing to a click with backing vocals already stuck in there on some computerized thing that runs along in time to the show so they have these amazing vocals that are only partly the guys on stage producing them at the time.
The truth is of course that history is not completed in modern commerce any more than philosophy is perfected in political economy. In other words there is nothing timeless or God-given about filling stations and penicillin and plastic bags.
