Today on Felthry Overthinks Things: Headphones in a world where people have all sorts of different body layouts and might have ears in weird places.
I would guess that--for ideal surround-sound experience--there'd have to be software stuff for marking where each ear is, and then the music files would be encoded as multiple parts with 3d locations for each source, to determine phasing and other inter-aural characteristics.
@Felthry Earphones that scan the interior of your ears to give the optimal experience at all times.
@Felthry No, but it makes for a damn good marketing ploy. :B
@Thaminga That sounds like one of those things that sounds all scifi and stuff but then you try it and it doesn't actually work any different from regular ones :v