If you tag things you're effectively recreating an organizational hierarchy, just with labels instead of literal folders. Plain search itself will always lack

If you tag things you're effectively recreating an organizational hierarchy, just with labels instead of literal folders. Plain search itself will always lack the feedback you get from the semantics you create by organizing things, unless you attach metadata to your search in some way. Simple example, you look for a math paper in your paper directory, and you find an even better one that you didn't remember. Of course recommender systems in search help with some of this, but search is mostly literal, it doesn't make connections the way you can. Spotify can give you some popular punk bands that are like the ones you like, but it's unlikely to give you that one record from the local band that nobody else listens to that you manually curated in your playlist 12 years ago.