Okay, so I assumed that Jon having really good hearing was a weird collective headcanon because I’ve seen it multiple times in fanfic by different authors. But now that I think of it

“Because what sticks out to me, more than anything else in that tape, is the very distinctive floorboard at the end.” MAG 62

maybe it’s not? It’s interesting because I at first thought that was a very interesting collective headcanon. But it might just be attested.