The problem with solving problems
'Prevalence induced concept change' causes people to re-define problems as they are reduced
https://www.sciencedaily.com/releases/2 ... 151752.htm
Summary:
As demonstrated in a series of new studies, researchers show that as the prevalence of a problem is reduced, humans are naturally inclined to redefine the problem itself. The result is that as a problem becomes smaller, people's conceptualizations of that problem become larger, which can lead them to miss the fact that they've solved it.