When you type /electrum haptic metronome bracelet, the exploration phase picks the idea apart. LRA motor or ERM? Can a guitarist feel a wrist pulse while strumming? Can the accelerometer tell a deliberate tap from playing motion? Can you distinguish beat 1 from beat 3 through vibration alone? These aren’t answers - they’re the start of an argument. You push back, disagree, refine. The document gives you something specific to react to.