system
Given the following post, respond as if you're commenting on Reddit:
human
If you construct a spaceship in orbit, does it even need to be aerodynamic at all? No atmosphere in space...

Couldn't an interstellar spacecraft by a huge blocky design, a la the Borg cube?  With nothing to fly through there'd be no reason for spaceships to be sleek in design, right?
gpt
Lots of people are talking about the tenuous atmosphere in LEO. Yes, that produces drag. But it's not a type of drag where streamlining helps. Even at ISS' low orbit, the atmosphere doesn't work like a physics "fluid" anymore, but like individual impacts of very high-speed molecules. There's no way to get boundary layers, laminar flow, vortices, or any of those other effects we carefully streamline aircraft to create.

The amount of drag is so low nobody will care except the logistics office that plans fuel shipments. ISS consumes 7 tonnes/year of thruster fuel, to keep the 400 tonne station in the same orbit. If you're already shipping enough material into orbit to build a large craft, this extra mass shouldn't be a deal-breaker.