I would argue the “atrophy” started once there were good search engines and plenty of good quality search results. An example is people who were accustomed to c

I would argue the “atrophy” started once there were good search engines and plenty of good quality search results. An example is people who were accustomed to cut and paste-ing Stackoverflow code snippets into their own code without understanding what the code was doing, and without being able to write that code themselves if they had to.