> Always more people, always more asphalt, always more buildings London's population today (8.7 million) is only marginally more than it was in 1939 (8.6 milli

> Always more people, always more asphalt, always more buildings London's population today (8.7 million) is only marginally more than it was in 1939 (8.6 million). For much of the 20th century the population decreased - there's no reason that can't happen again, especially if people migrate out of London for work.