system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Could we really build Star Wars sized space ships?

Say, something that was several kilometers long and could house tens of thousands of people. Is this feasible with existing materials science?

EDIT:

Let me clarify: I'm assuming cost isn't a factor, nor is getting the material into orbit, etc. Let's just build the damn thing up there.
gpt
Simply designing and building the structure would probably be the easy part. Objects in space don't need to worry about gravity nearly as much as objects on the ground. It's sort of like a whale... a whale is fine in the buoyancy of the ocean, but stick one on dry land and they'll crush themselves under their own weight. If it will always stay in space, it shouldn't be too bad of a feat.

The bigger problems would be things like simulating gravity, propulsion and the real big one... getting that much material to space in the first place.