>>This is best handled with event planning, because if you make too big of a blob, the center is difficult or impossible for disabled people to reach. Same with large areas of grass instead of pavement; if you put stuff in the middle, it's out of reach. Plus big blobs are also a pain in the ass for emergency services, residents or irrelevant businesses stuck in the middle, and so on. <<

Like how animals depending on oxmosis for oxygenation/hydration/etc are limited in size. Circulatory systems for the win!