I was a third-year medical student at Northwestern on my ICU rotation the first time I saw a dopamine drip. The patient was pale and motionless, his blood pressure dropping by the minute despite large ...

Digital entertainment products are no longer judged only by their core feature set. In many categories, the real difference comes from how well they guide users back into the experience day after day.

Not every digital platform succeeds by asking for more time. In many cases, the opposite is true. People are drawn to experiences that feel easy to understand, easy to revisit, and simple to fit into ...

Games use random rewards to keep players interested and excited. Getting a prize at unexpected times, like from loot boxes or daily login bonuses, often makes people want to keep playing. Game ...