Guerilla space warfare. The Star Wars Geneva Convention. Chinese gun powder weaponization. Resources and impoetus in the development of killing technologies.
Speed-of-light internet latency. EVE online strategies for fun and profit. “Sharding” as first-named in Ultima as a technical and storytelling solution.
Wasting potable water. Saltwater pipe corrosion. Graywater toilets. Fermenting your pee and eating rotten shark that smells like pee.
Could you really spoil Doom, though? Navigating by the ecliptic in space. Playing Descent.
Savantism before the invention and eventual ubiquity of writing.
The wonder of centricities and the Greek pantheon. Using the wrong words for things. ASCII vs Unicode.