World's Hardest Geography Test

GPS is a poor replacement for local knowledge.

I recently got in a cab in SF with visiting parents, asked to go to Hayes Valley, and the guy started driving off in the complete wrong direction. At first I figured he thought we were tourists and he was taking us for a ride, but I quickly realized that he had simply put some nonsense into his GPS, completely relying on it, and had no idea where he was going. I can't understand how you can be a cabbie in SF and not know where an entire neighbourhood is.