“What If We Built an O’Neill Cylinder?” asks the “What If” channel.
Jeff Bezos wants to build enough of them to house 1 trillion people.
They would be set a La Grangian points and be tethered in pairs, and be about 4 miles in diameter and 16 miles long.
The film shows planet of artificial cities, lakes and green mountains.
The film has a sequel, to be looked at later, about getting people there.