> I have a weird catalog in my head of things not to mention An optimistic view is that people maintain blacklists of topics to avoid, as opposed to whitelists

> I have a weird catalog in my head of things not to mention An optimistic view is that people maintain blacklists of topics to avoid, as opposed to whitelists of noncontroversial topics that they are allowed to talk about ("Do you know that Newspeak is the only language in the world whose vocabulary gets smaller every year?").