Again i didnt say they were just like the marketplaces of the past but they still have echoes of those places such as when you head to the meat counter and speak with the butcher about a particular cut or the baker for a certain cake. The cashier is also a part of these human to human interactions that you may not think much of in the moment but that help foster basic trust and friendliness among men. The more we do away with human to human interaction in the public sphere the more we isolate and dont trust anyone outside our circle or trust only ourselves. These changes are incremental but are visible (as i mentioned now Walmart stops you on your way out to check your receipt) but over time it builds and builds the less interaction overall we have with others. As someone once said “You may not have noticed, but your brain did.”