Truth Default Theory (TDT)
Truth Default Theory is a communication theory which predicts and explains the use of veracity and deception detection in humans. This theory gets its name from its central idea which is the truth-default state. This idea suggests that people presume others to be honest because they either don’t think of deception as a possibility during communicating or because there is insufficient evidence lending them unable to prove they are being deceived.
For MUCH more information, and some stunning examples, check out this podcast episode of Revisionist History, called the Queen of Cuba.