Plato was certainly smarter than both of us put together, but he also lived in a very different cultural landscape than we do. What books were available to youn

Plato was certainly smarter than both of us put together, but he also lived in a very different cultural landscape than we do. What books were available to young people then? Not many, I'd wager. The lack of suitable mass publication mechanisms certainly reduced the importance of literature. And the vast majority of the authors that I would think of as "great" had not been born yet. It is debatable whether a landscape devoid of mass publication means would still produce a healthy supply of great literature. Since the printing press, we've had an explosion of amazing literature produced and distributed throughout the world. Many of the greatest thinkers of the last three centuries left their thoughts behind for us to build on. As an added bonus, many of them left those thoughts in highly entertaining forms that entertain and delight as much as they instruct. It would really be looking the gift horse in the mouth to the extreme, to demand that impractical scientific studies be conducted to "prove" that humanity's great books make your life better. Of course, we may have a difference of definition here. By "escapist fiction" I assume you included most fictional works, including such masters as Gabriel Garcia Marques, Herman Hesse and Jorge Luis Borghes, who definitely have the ability to transport one outside of the real world into that of imagination.