When I was studying some (and failing at) History as an undergrad (I don’t think the professors fully appreciated my approach of reading and interpreting historical texts as if they were literature) the full shift to the Bottom Up approach to the field was settling in. There was still time in class
Only the successes (or the mega failures) from the deeper past are recalled, giving an skewed sense of what actually happened if one doesn’t do proper research. Without that research, the half-remembered past is not a valid touchstone to base an argument on. An incomplete picture of the past creates a false interpretation of the present.