It does call into question how much of our personal computer content we actually need to save? Who will want to look at it all once we're gone? Having been on a number of folk-related committees over the last 25 or so years, do I really need to keep every last minutes of a meeting? As far as HMRC is concerned, it's usually 6 years.
Will anyone want to listen to a mediocre concert recording from 15 years ago, or watch those silly short video clips? Time for some housekeeping, I think.
But I take your point about the Domesday project, DaveRo!