Alternate scenario: the show Beforeigners almost becomes reality. In various places around the world, people start appearing in the ocean out of thin air.
The difference from Beforeigners is that instead of being from the past, they’re from parallel Earths.
The first ones come from an Earth that has had a slower technological development than ours, so their version of the 2020s technologically resembles our 1980s. But soon, others start appearing from other Earths:
- one where the Industrial Revolution started in Asia, not in Europe.
- one where the planet rotates the other way around its axis, so the people from there thinks that here, the sun rises and sets on the wrong horizons.
- one where the mass that in our universe became Earth’s moon became two moons; Big Moon, that’s two-thirds as big as our moon and Little Moon, one-third
as big as the moon we have.
- one where the Spanish Flu was the start of a pandemic that reduced the Earth’s population to about 4 million.
And those are just the majority. There are cases of just one or two individuals or just a family coming from yet other worlds.