In the movie "Limitless" Eddie Morra is an aspiring author that's suffering from writer's block, but his life changes instantly when an friend introduces him to a little pill called NZT. Eddie's brain is transformed into a powerful human super-computer. This pill gives him super mental abilities, enabling him to read and recall millions of bits of information instantly. NZT is fictional, however Adderall is the real deal. And both have serious side-effects.