One of the last essays in Ayn Rand’s Capitalism: The Unknown Ideal is one titled “Alienation” by Nathaniel Branden. In this essay he talks about the view some authors have about modern society, and how it is because we are “too rational” that we feel separated, alienated, from the world around us and other people.
Branden argues that this feeling of alienation that some (many?) people experience is because they hold a view of the world that is contradictory to reality