the.com/sidewalk

a public stage where everyone walks like nobody's watching, except everyone is

means the paved path along the side of a street, set aside for people on foot.

from Exactly what it says on the tin: a compound of "side" and "walk," naming the walk that runs along the side of the road. It's the standard American word; the British went a different way with "pavement" (literally the paved part) and "footpath." "Walk" here is the old sense of a path made or kept for walking — the same use you see in a garden walk or a boardwalk.

chalk theory
Hopscotch grids predate the Roman Empire's roads
crack myth
Stepping on cracks broke zero recorded maternal spines
gum census
Cities spend millions blasting hardened chewing gum off concrete
heat trap
Surface can hit 145F, hot enough to burn paws
first one
Ancient Pompeii had raised pedestrian paths with stepping stones
for instance

hollywood walk of fame — 15 blocks of sidewalk on hollywood boulevard embedded with 2,700+ brass stars honoring entertainment figures

times square pedestrian plaza — permanent pedestrian-only zone created in 2009 replacing vehicle traffic on broadway segments

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