4 ideas
Concrete, working demos — not specifications, meetings, or written plans — are the medium through which product decisions get made. By forcing ideas into a tangible artifact that can be reacted to, the team converts vague opinions into specific judgments about something real in front of them.
An effective demo isolates a single decision and presents a clear, fixed choice rather than open-ended options. You make the demo specific enough that the feedback can only be about whether this exact approach works, which prevents endless abstract debate and produces an actionable next step.
Tasked with building a touchscreen keyboard, the author cycled through many failed layouts until landing on autocorrection that predicted intended words from imprecise taps. The breakthrough came not from a master plan but from rapidly building, testing, and discarding dozens of concrete versions until one demo clearly outperformed the rest.
Apple's product culture rested on combining inspiration, collaboration, craft, diligence, decisiveness, taste, and empathy in daily practice. These were not slogans but operational habits enacted through the slow accumulation of small choices in actual product work, where each element checked and reinforced the others.