But if, like me, you also use black cabs, you might know one of cabbies’ favourite topics: Uber. The “ridesharing” app – as it calls itself – has empowered millions of people across the world to enter the taxi industry. And in London it has not only connected these drivers with customers, but it also tells them the best route to the destination. In generations past, this intimate understanding of London’s streets – called ‘The Knowledge’ – could take many years to learn. Now, Uber drivers can know where they’re going from day one.