April (and a little bit of May) Twitter Archive

As usual, my thanks (and apologies, if warranted) to my interlocutors. I make no claim to have done justice to their end of the conversation. Also, I archive selectively; a lot gets left out, not just retweets and links and ephemeral stuff, but also exchanges that I don't judge to have been sufficiently interesting in terms of what I said, or where the discussion went, or that I didn't like something about. (UPDATE 5/8: I've added the tweets from yesterday and today to this archive, instead of waiting until the end of the month.)
( Without further ado… )