John McAfee tweets that if Bitcoin doesn't hit $500,000 by the end of 2020, he will eat his own dick on national television. He later doubles down, raising the target to $1 million. The deadline — December 31, 2020 — becomes known as "The Dickening." Bitcoin ends 2020 at $29,000, nowhere close. McAfee eventually admits he never believed the prediction and is found dead in a Spanish prison in June 2021.
McAfee's Original Tweet