They are saying that over time, compression of the foam in the pads slowly changes the sound. Which is true, however it's incredibly slow, incremental and undetectable while it's occuring. Almost certainly, a well worn 5 year old pad is going to sound different from a new pad to the trained ear. But that's just pad wear, not burn in. Of course, brain burn in is simply the brain getting accustomed to the dynamic profile of a set of cans. OP is simply trying to rename pad wear and is suggesting that this is what people experience when they experience headphone "burn in" of the drivers.

Brain "burn-in".

Well that looks comfy.

Yeah, I have a couple too. I found it odd they eliminated it with the S2, given the substantial price increase.

Not only that but how would he feel if he went to his buddies house and they had a great set of headphones but no other audio reproduction? They just going to sit there with headphones ignoring each other? Don't get me wrong, Bose systems are fatiguing as hell. But I'd rather share that with a friend than critically listen to music on a wonderful headset.

Hell, the much more expensive S2's don't come in the nice box anymore.

It's literally the only pineapple down there.

In all fairness, inflation takes care of that difference. I honestly thought they were typically volunteers.

A AIDS denier Didn't know you people exist.