Left overs. Trash. Loose ends. Scrap. That's what about 9% of the population was.
Well, 9.25% was the number before we were no longer allowed to search through the world's viral connection. The world population was at 8.3 billion, meaning 767,750,000 were left the last anyone could check. A tenth of our people left after the Furies had taken power.
The Furies. The three mysterious, hidden figures of power who we'd seen as our saviors. Despite their wretched name, they seemed to do only good. Clean energy, unextinction of species, world peace, all the good things we were supposed to wish for when we got our genie.
Then they flipped it just as fast. As soon as the desicion to name them as the fully powered leaders, a large fraction of all living humans were gone the next day. Then the same cut the next. Then the next.
It happened in various ways, but it actually all felt real the moment the lights turned off and didn't come back on.