Ten point nine million people

[Tibbs735]

People living in densely populated cities will have to have special loops implanted into the backs of their legs, to make them stackable and save space .

But seriously, this is absolutely terrible. Urban sprawl is going to keep spreading like some horrible concrete mould.
I get so angry when people say things like "How are we going to feed the worlds/ UKs growing population," when most people never consider the fact that we can't. Its almost taboo to mention it.