I knew it! You've been colluding with my eyeballs all along!
Optical illusions are old hat at this point. Yes, the two lines are the same length. No, that's an old lady AND a young woman at the same time. But what about audio illusions? Those don't get nearly enough play, so to speak. That's why AsapSCIENCE wants to trick your brain with sounds instead of sights using a number of famous paradoxes.