Why do political movements splinter into antagonistic factions?
Why do teenage girls have worse mental health than boys around the world?
A selection of my favourite things from this year
The new star of BBC news, what he has in common with Peter Jackson, and what stories do to time.
Before he jogs on for good, let's understand why he has been successful
The first in a series of posts inspired by Get Back.
Why culture wars rely on abstraction
How it's going and what I'm reading
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