I am struggling to believe that the Roman Empire reference for this acronym is "so obvious". I do know about the meme: in fact, what struck me so hard about this is how, for a protocol where you'd almost expect it to be hard for them to avoid the acronym "SPQR" (as, even if it were not Sparse, it is made by Signal; I could even see them having started with Signal and decided to remove their brand from the acronym), there are not one but two top-level posts on Hacker News where "speaker" seems to have wooshed over their head and somehow this extremely niche acronym from the Roman Empire is clearly the reason why this is called SPQR. Is the tech community on Hacker News really this stereotypical?