In this episode of the REWORK podcast, hosts Jason Fried and David Heinemeier Hansson explore product development by focusing on what users have to sacrifice, rather than just what they gain. They point out that many products replace existing habits or tools, such as using email for project management. Successful marketing, they argue, should address user pain points and challenges instead of merely competing with other software. The hosts also stress the value of "dogfooding," or using the product internally, to pinpoint areas for improvement and better understand user adoption hurdles. Ultimately, the key to a product's success is creating a solution that feels intuitive and effectively addresses the core problem, even if it means offering fewer features than competitors.