American public space, rebooted: What might it feel like?

Already, there are hints of what institutions and the spaces they occupy could look like. If even some come to pass, they could alter Americans’ relationship with the public realm.

— Vibrating pagers like those used at chains like Red Lobster. Already some hospitals are handing them out; instead of entering a lobby, wait in the car until you buzz.

— Arrows on the ground, and other physical markers to encourage and enforce distance. Imagine sidewalks with scoring every 6 feet (2 meters) so those walking could make sure they’re the human equivalent of a few car lengths behind. Or large sculptures deployed to separate people.

— New designs for eating places. McDonald’s is already prototyping a socially distanced version of its restaurant that could be a template for fast-food spaces around the world.

— Checkerboard grids on the grass in parks, with people allowed to occupy one square only if those surrounding it are empty. Or time-sharing of public places: If you don’t show up for your 12:15 p.m. slot at the playground, you’re out of luck.