the smartphone is probably the answer
you can just google and get an answer, so why remember stuff?
same as the calculator probably killed peoples maths skills
and machinery to do manual labour probably killed peoples physical strength.
porn probably killed mens need to be high status
fast food killed womens ability to cook
chinese textiles killed the need to learn how to sew and make clothes.
people will always follow the path of least resistance because expending energy has an evolutionary cost
the path of the superior man rejects path of least resistance, but if you just want the easy life of pleasure, then the path of the superior man is not for you.
just look at what the masses are doing and do that