The only good thing about taxis in London is that they need to pass a test called The Knowledge (refs below) which means they are able to figure out the best ro

The only good thing about taxis in London is that they need to pass a test called The Knowledge (refs below) which means they are able to figure out the best route to anywhere in London on the fly. HNers who are into Sci-Fi ought to check out Will Self's "The Book of Dave", which is funny, brilliant, and (in large part) about a future post-apocalyptic society which makes a religion of "The Knowledge."