People are dumb. If they hear something that is unclear or ambiguous, they will hear whatever they want to hear, or whatever they are told to hear. And I don’t mean they’ll interpret “nice shoes” as a genuine comment when it was meant sarcastically; I mean people will actually hear completely different words depending on what they are expecting to hear. Even you are not immune to this.

Try this. Listen to the song embedded below. It’s Led Zeppelin’s “Stairway to Heaven” backwards. Listen particularly to the section that starts at about 4:40 on the little timer.

Unless you’ve been exposed to this before, you probably heard random backwards gibberish, with maybe a few things that sounded like real words.

Now listen to the clip below:

It’s the same song you heard before. The exact same noises reached your ears, but you probably heard completely different words than you did at the 4:40 mark in the previous clip. To prove it, go back and listen to it again if you’d like. After seeing the purported lyrics, I can’t listen to it with out hearing the Satanic message.

Of course, it’s probably not really a Satanic message. We just look for the words we were told to look for in almost-random noises, and our brains make us find them. You could probably do this with almost any song. For example:

And with this in mind, I present to you the most fucked up thing you will see all day:

Edit: More of the same here.