But, even if they prove dull, a fall into poverty is unlikely.

ECONOMIST: Why Britain is becoming less socially mobile

What is the impact on the families of such patients, not knowing if their loved ones recognise them and whether the words they speak are understood or fall into a void?

BBC: Finding a voice for the brain injured

If ticket sales fall off a cliff, they might need to re-evaluate converting more films into 3-D.

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