I disagree. Most people until the 1930s were farmers. It was the largest class of people. Farmers really needed to know a lot, about a wide amount of things; m

I disagree. Most people until the 1930s were farmers. It was the largest class of people. Farmers really needed to know a lot, about a wide amount of things; mechanics, animal husbandry, weather, markets, sales... People also use to live in smaller communities. So they understood each others' roles. Many people in smaller communities also had multiple roles/jobs. There are studies that small towns also produce better athletes for this reason https://www.researchgate.net/publication/279469393_Community_Size_in_Youth_Sport_Settings_Examining_Developmental_Assets_and_Sport_Withdrawal https://www.researchgate.net/publication/279469393_Community... With specialization I think that the overall general knowledge of people has declined.