Many studies cannot discern whether there are real changes in neurogenesis in humans with depression.
The brain scans found drifting IQ mirrored by changes in density of nerves and other cells in parts of brains, suggesting drifts are real changes in ability, not varying concentration, mood or motivation.
However, Giles then goes on to make a very serious error of his own in handling the UK data: he treats changes in the way wealth inequality is measured over the decades as if they were real changes in the underlying distribution of wealth.
There have been real changes in Liberia already – new roads, streetlights, schools – but the damage to children like Gloria goes deep and will take longer to repair.
It appears that there were real changes in people's sexual behaviour marked by increases in casual sexual encounters, infidelity, sexual predation, incest, multiple sexual partners, early marriages, forced marriages, and many others.
There's real change in nascent Palestine, too.
And there is real change in the form of the Liberal Democrats.
What is needed is real change in the UK's working culture, which will not happen overnight.
It is real change in the lives of real people eager to improve their own conditions, if only they can get a real chance.
Extracts of the speech, released before last week's cancellation, show Mr Cameron will warn Britain could "drift towards the exit" unless there is real change in Brussels.
