This might be philosophical, but I think a lot of people make a mistake, when they assume that just because something is made up, it somehow makes that thing less real, and less of an obstacle to overcome. The quality of being made up says something about a thing’s origin, not about its level of realness.

As stated, that notion might be philosophical, but following it’s own rules, that doesn’t impact the degree to which it, as with any other idea, exists as a thing that has the quality of realness (distinct from truth value) to it.

Okay, but I wasn’t discussing or quoting you on anything relating to war material. Just your assertion about cargo in general!

Also…

The large cargo ships famously need large amounts of water.

Sounds like you haven’t heard about viking cargo ships on logs!

Railways are actually super important though. They can transport more cargo than any other means.

Cargo ships would like to have a word with you.