The world feels pretty dark at the moment, doesn't it?
But it's not. This is a golden age.
For most of human history, lives have been solitary, poor, nasty, brutish – and very, very short.
But now we're living longer...
...and not killing each other so much.
We're feeding people better, even though there are more of us.
And the population isn't growing as quickly.
This isn't just in rich countries, either. The whole world is getting richer and healthier.
And we're not just getting richer and healthier: We're actually getting smarter.
And things will probably get better still.
So remember this when you see people worrying that the world is dangerous, or that we're all going to die of cancer or obesity or Ebola or MRSA, or that education isn't what it used to be, or that we're all going to starve because of overpopulation, or that we're having too many babies.
The world is full of dangerous things, of course. Nothing's perfect and these improvements are not guaranteed to continue, and it looks like we've buggered the climate up, which could be a problem. But still, this is the safest, best, happiest time to be a human being there has ever been.