Announce it sir, WRWY!
"…I get a little hot at night…"
BOING
T Y B
Here's your Bidet admin lol
The breather hole. Believe it or not its for addn'l safety. There's on somewhere near the edge on all commercial aircraft windows…It's just the lighting that makes it look weird.
Here:
https://aviationforaviators.com/2021/03/30/what-are-those-small-holes-on-airplane-windows/