The fusion of DNA computing and outdoor seating represents a groundbreaking leap in smart furniture design. By leveraging the unparalleled data storage and processing capabilities of DNA molecules, designers can create seating solutions that adapt to environmental conditions, user preferences, and even self-repair minor damages.

One innovative application involves embedding DNA-based sensors into seating materials to monitor temperature, humidity, and UV exposure. These bio-sensors could trigger shape-memory alloys to adjust seating contours automatically for optimal comfort. Another approach uses DNA origami nanostructures to create self-assembling seating components that respond to weather changes - expanding in cool conditions for warmth and contracting in heat for better ventilation.

Perhaps most remarkably, DNA computing enables seating with "living" properties. Imagine park benches that change color to indicate air quality, or cafe chairs that use DNA logic gates to reconfigure their arrangement based on crowd density. Some prototypes even explore using synthetic biology to create seating surfaces that grow moss or beneficial microorganisms, purifying the surrounding air while providing natural cushioning.

The sustainability benefits are equally impressive. DNA-stored information about material composition could facilitate perfect recycling, while biological computing elements would biodegrade harmlessly. As this technology matures, we may see entire outdoor seating ecosystems that communicate through molecular signals, creating responsive public spaces that blend seamlessly with nature.

While current implementations remain experimental, the potential for DNA computing to revolutionize outdoor furniture is undeniable. This convergence of biology and design points toward a future where our public spaces are as intelligent as they are beautiful.