The problem with an O’Neil Cylinder is bringing up enough processed material to build one.

One possible solution is a moon base. The moon is full of titanium and iron.

And then you could launch the stuff out of a weaker gravity well with no air resistance.

First you try to call for help

Careful, it could be a bear posting this to mislead you.

water

Depends on the context. If it is written/talked about in a geographic context, it will usually mean “the Americas”. If it’s in a political context, it will mean “the USA”.

That’s a good point.

https://de.wikipedia.org/wiki/Amerika

Ja