<i>"The semicolon is a profound public mystery; the only punctuation mark that regularly unites readers and writers in deep-seated repugnance."</i><p>That sentence should have used a colon, not a semi-colon, IIANM.<p><i>The digital world churns; Twitter is not an arena known for reflection. Semicolons, then, are snottily elitist and shadily indirect.</i><p>The elitist snottiness is in assuming people live their lives on Twitter and the like. They don't.<p><i>the semicolon has been usurped by ... the Dash</i><p>Well, _maybe_ some authors use more dashes than they used to (I actually doubt that, but never mind) - but a dash is not a substitute for semicolon. Their semantics are too different for that to be possible, IMHO. Take the first sentence in this paragraph: You can't replace the dash there with a semicolon, as that would mean splitting the "maybe" and "but" clauses into separate, not-directly-related clauses; you just can't do that.<p><i>indicating a pause</i><p>Not just a pause; a semicolon is also a semantic distancing. Two phrases separated by a comma are really an inseparable part of the same idea idea; if you separate them by a semicolon, they can each stand in their own right.