Today, the world comes to an end. Well, in theaters, anyway. 2012 has us thinking about the apocalypse ’round these parts (so uplifting, we know), and that led us to wondering about all the crazy technology that’s all around us — technology that at one point or another caused widespread fear that it was all over. It’s happened several times, yet we’re still here.

Make sure to knock on some wood before you click Continue, because here’s six technologies that haven’t ended the world — yet.