Sky Go's direct-to-your-skull train window marketing campaign (video)

If you happen to rest your weary head on a train window in Germany, don't be surprised if you start hearing voices in your head. Voices that other passengers won't hear unless they too are resting their heads.

So, I'm not going mad?

I can't say for sure as I don't know your full medical history, but the voices on the train - at least - are nothing more than Sky Deutschland trying to sell you Sky Go.

 

As for how it's done, it's a thing called bone  conduction - which, according to Wikipedia, is the conduction of sound to the inner ear through the bones of the skull. A technology that's been around for quite some time, in the shape of hearing aids and lollipops.