The man who counted to infinity twice is invading iPhone 4S handsets around the world thanks to an incredibly useless but fantastically amusing Siri tweak. iOS developer Wonderbread recently released an add-on dubbed “Chuck Norris Facts” for the AssistantExtensions platform that brings powerful new functionality to Apple’s voice-controlled virtual assistant, Siri. After installing AssistantExtensions and the Chuck Norris Facts add-on, the command “let’s chat” will activate AssistantExtensions’ chat-bot feature, and users who dare to speak his name can simply say “Chuck Norris” to hear Siri reply with one of countless faux factoids from the popular Chuck Norris facts meme. Chuck fans will need to jailbreak their iPhones in order to download and install the tweak from the Cydia app store, and caution is recommended when jailbreaking or when doing anything involving Chuck Norris — there used to be a street named after Chuck Norris, but it was changed because nobody crosses Chuck Norris and lives.