Basic evolutionary theory may argue that most of it is "junk" in the sense of being non-functional (even though some may be species-specific or under selection

Basic evolutionary theory may argue that most of it is "junk" in the sense of being non-functional (even though some may be species-specific or under selection too weak or recent to be detectable). One paper that lays out this argument has title with the memorable beginning "On the Immortality of Television Sets." https://academic.oup.com/gbe/article/5/3/578/583411 https://academic.oup.com/gbe/article/5/3/578/583411