Say you build a perfect 15-minute city—shops, schools, parks all within a walk. Sounds great until you realize it disproportionately benefits wealthy neighborhoods already equipped with those amenities, while poorer districts still lack the initial infrastructure to even start. I recently read a report from Melbourne where a similar plan widened the gap in access to green spaces by 12%. So is the 15-minute city an inclusive solution or just another gentrification tool dressed as sustainability?