Pretty much what has long been my dream "make the world better" product (long as in from pre-genAI days), only that this one happens in image space: take an architectural model, look at the surface material specifications, analyze it for where rainwater would run down etc and generate weathering texture, how would this look when it's not new anymore.

Because as I see it, a lot of aesthetic decisions in architecture, pretty much anything that goes in the direction of minimalism, is just putting "newness" in the center of perception. And thus absence of "newness" will be in the center of perception when it stops being new. All these clear geometric shapes? They look awesome at the opening ceremony, but two years down the line they are like magnifying glasses for uneven changes in color and the like. Whereas for a more playful surface full of ornaments, those same years would be hardly more than a blink and they can age gracefully, on the aesthetic level (and on the technical level, required maintenance intervals are much longer anyways). Architects who claim to care for sustainability should demonstrate that they consider how the building will look like later in life.