Point is it used to be better. Same with Google. Today there has been multiple breakthroughs in a number of relevant fields but yet we see quality declining i

Point is it used to be better. Same with Google. Today there has been multiple breakthroughs in a number of relevant fields but yet we see quality declining in obvious ways. I understand that sometimes one needs to take a step back to take two forwarded, but in Googles case they are now in their tenth year after taking 5 steps back and at some point the new solution has to prove itself. Sadly I guess the old solution is "lost to time", that noone is able to replicate it anymore. It is the only explanation I have why it hasn't been reverted.