The ability to extrapolate what something would taste/feel like from mere looks is a learned one.
Toddlers don’t have it yet, which is why they’re stuffing everything into their mouths.
You might not consciously remember licking a carpet, but the part of you that’s holding up the “dusty”, “textured” and “CRUMBS!!” signs does.
Depending on your definition, this actually is not peak performance.
Subways are.
Obviously, the tunnels are absurdly expensive, but nothing moves as many people as quickly around a city as a subway.
They’re also extremely reliable, meaning people are even more likely to actually use them, and their above-ground footprint is essentially zero.