Those percentages aren't the odds of such a thing happening.
They are the odds of such a thing ending human civilization.
Quote:
Scientists from Oxford University's Future of Humanity Institute and the Global Challenges Foundation have compiled the first research on the topic, drawing a list of 12 possible ways that human civilization might end.
It's a pretty meaningful semantic difference. Any of those things could happen, but the odds are low that they would end human civilization. We have a way of surviving.
For instance they give the odds of a global pandemic ending human civilization at 0.0001%. Those are
not the odds of such a thing happening. But there is precedent for civilization surviving the most horrendous of apocalyptic pandemics such as the Black Death. That civilization persisted didn't make it any less apocalyptic for the unlucky ones who lived and died in the midst of it.