Seeding the Anti-Meme Meme

I'm gradually watching my way through Stargate: Atlantis (which I hadn't watched in its original run).  Today was the episode where everyone in the city loses their memory, and havoc predictably results.  What is it named?

Tabula Rasa, of course.

Okay, yes, we didn't invent the idea (I originally got it from the ST:TNG episode Conundrum).  And yes, it's probably parallel evolution.  But I strongly suspect this was inspired by the Buffy episode of the same name, and there's still a little part of me that wonders if Joss Whedon heard about our game 20-odd years ago and said, "Hey!  That would make a cool episode"...