The greatest interview ever recorded won’t get as many hits on YouTube as a cat giving a high five. The people behind Blank on Blank want to make audio go viral. They take audio gems that fell on the cutting-room floor, or low-fi cassette tapes that were never aired, and create original animations of two to five minutes. Producer David Gerlach selects the audio (everyone from Fidel Castro to Meryl Streep to 2Pac), and gives it to animator Patrick Smith, who visualizes the words in charming lo-fi videos. Blank on Blank is now drawing millions of views, and Sean Rameswaram talked with Smith about tricking people into watching audio.