“If I put you at a cul-de-sac in a neighborhood and you…” — Freakonomics Radio at 41:51
“If I put you at a cul-de-sac in a neighborhood and you were going to do a U-turn at the end of the cul-de-sac, even though the speed is significantly slower, if you did two meters per second squared of lateral acceleration around a cul-de-sac, you would tell your driver they were crazy.”
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