Limitless

: As Eddie’s intelligence grows, his empathy often wanes. He treats human interactions like puzzles to be solved and overlooks the violent fallout of his ascent, including his brush with a murder investigation.

: Eddie becomes physically and psychologically dependent on NZT-48, discovering that withdrawal leads to cognitive collapse and potential death. Limitless

: He can process complex financial patterns and social cues at incredible speeds, allowing him to turn small investments into millions. : As Eddie’s intelligence grows, his empathy often wanes

The "deep" aspect of the story lies in the profound consequences of this enhanced existence. Eddie quickly finds that his new abilities attract dangerous attention from corporate predators like Carl Van Loon and lethal loan sharks. : As Eddie’s intelligence grows