Timothy Ferris doesn’t mince his words:
Many worthy thinkers fear that “the life of the mind” is being crowded out by the current explosion of scientific information and technological innovation. “We are living in an increasingly post-idea world,” warns Neal Gabler, in a New York Times op-ed essay mourning the loss of an era when “Marx pointed out the relationship between the means of production and our social and political systems [and] Freud taught us to explore our minds.”
But in what sense is this a loss? Freud discovered nothing and cured nobody. Marx was a hypocrite whose theories failed in about as hideously spectacular a way as can be imagined.