Well yes I knew that. But the point is that people had been distributing their load over a set of identical resources for decades before that, usually calling it "Partitioning" or some other word that wasn't "Shard". This is an often repeated patter in the field unfortunately : new people invent something that they don't realize already existed and make up a new name.

Sure, but they weren't trying to invent a technical term -- it just caught on for some reason.

It turns out that if your game backstory reads too much like an MCSE study guide, your game won't sell very well.