Isn't the issue that humans will never accept something is finished. People have spent many years sorting many things but at some point someone suddenly decides

Isn't the issue that humans will never accept something is finished. People have spent many years sorting many things but at some point someone suddenly decides (for good or bad) that sorting could be better, that files could be done differently, that ext4 is no longer suitable for scenario X and they start inventing something new. Most of these things probably die after a while if they are ever really well-known but if you work for some FANG (or whatever it is now!) company, you might have enough resource to force the new way of thinking onto everyone else so that FOMO kicks in unless you are also using the new best thing. In so many cases, people get religious about differences that might affect Google or Amazons bandwidth usage but no-one elses (like using a new image format). I wonder how many developers, particularly web developers, actually know for certain which parts of their system are unreasonably slow and actually need to change?