Demographic projections or forecast are highly hypothetical.
In 1990, some professional demographers in France swore to their gods that the world population would be 20 billion in 2020.
They're not bragging about what they predicted back then.
Any unexpected disaster could cause the African people to die en masse. We've seen turmoils like this in the past.
When I was in preschool or nursery school, I was 4 or 5 in a Catholic establishment. Our teachers were telling us to make our moms buy food for Ethiopian little kids dying from famine. We filled several trucks like this.
They showed us pictures of little kids like us dying from starving... That's the kind of things you don't forget.
Today, people in Africa are still impoverished, but they no longer literally starve. I still fear it might happen again. You never know.
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