What is it about the classic aesthetic of rim brakes that evokes a sense of joy in some cyclists, and how do the visual and tactile aspects of this design contribute to the overall riding experience? Is it the simplicity and elegance of the caliper and lever design, the satisfying click of the brake pads engaging with the rim, or something else entirely that creates this emotional connection? Are there any design principles or philosophies that can be applied to modern brake systems to recapture this sense of nostalgia and aesthetic appeal, or is the allure of rim brakes inherently tied to their mechanical simplicity and the era in which they were popular? Can the sense of joy associated with rim brakes be replicated in other components or systems, or is it unique to this particular aspect of bicycle design?