Works great -- as long as you're omniscient. Not at all - to set people straight on common talking points doesn't require omniscience, it merely requires that

Works great -- as long as you're omniscient. Not at all - to set people straight on common talking points doesn't require omniscience, it merely requires that those specific talking points have been satisfactorily refuted before, clearly enough so that almost anyone would agree that they're squashed. If someone on Twitter said "evolution is just a theory", I'd be perfectly happy to see someone respond-spam them with the Merriam-Webster definition of "theory" as it relates to science - that's an unambiguous refutation of the argument, verifiable by pretty much any onlooker as valid (in my experience, when confronted with that response, creationists usually don't acknowledge that they're wrong, but they quickly leave the topic, realizing that they won't score any points there). Similarly, if someone said "Darwin recanted on his deathbed", a simple link to http://www.answersingenesis.org/articles/2009/03/31/darwins-deathbed-conversion-legend http://www.answersingenesis.org/articles/2009/03/31/darwins-... (the first Google result for that phrase) would be fully justifiable, regardless of the qualifications of the responder. As a rule, I think if someone utters/posts/writes something that can be 100% debunked, beyond any reasonable doubt, by typing the phrase into Google and reading the first three results, it's fair to call them out on it, even in an automated way. Omniscience not required. Then again, I'm more used to arguing evolution than global warming, and evolution is a much more solid theory. I don't know how soundly most of the anti-global warming claims have been refuted, it may very well be the case that this guy is just parroting back talking points rather than properly shooting wrong ideas down. In which case that's Bad(tm). But as an abstract idea? Go ahead, shoot down the idiot masses, as long as you're damn sure that you're right about what you're putting them down over. A lot of stuff that people say really does deserve a rude smackdown, it's so offensively wrong - this is Twitter we're talking about, after all!