The Sweet Spot — Where Simple Begins to Deepen At first glance, this humble cigar box carries a familiar look—clean lines, the numbered slots for the Penny Drop game, and the promise of interaction waiting just beneath the surface. But don’t be fooled by its approachable single dial appearance. This piece marks a turning point in the learning journey, where simple mechanisms begin to stretch into something more demanding. The Sweet Spot mechanism was originally created as part of a stru...