It shows definitions, pronunciation and extensive etymology definitely an asset while reading Chekhov, or Infinite Jest.

FORBES: My Worst Nightmare: David Foster Wallace on iPad

If I were to speculate, I would speculate that Infinite Jest is the product of exhausting option (c).

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It may have been, like Infinite Jest, an almost impossible project.

FORBES: David Foster Wallace's Depression: Neurodiversity and Flourishing