Signs of the illusion of certainty: “I know,” “I’m sure,” “I knew it,” “It always happens this way,” “I’m certain of it,” “you’re 100% wrong,” “You have no idea what you’re talking about,” “There’s no way that’s true,” “0%” or “100%” or their equivalents, and other terms signaling that we’re presuming things are more certain than we know they are. This also includes stating things as absolutes, like “best” or “worst” and “always” or “never.”