I'm not a pilot, but have had white lights shifting mysteriously on interior surfaces while driving my van. The lights would disappear just as mysteriously. They would suddenly appear when traffic got heavy, and I'd put my left hand on the steering wheel. ??? I was wearing a quality wristwatch, and the "lights" were produced by bright sunlight reflecting off the precision cuts around the watch's bezel.
Maybe some here have experienced this, and can name the watch? ;)
“They would suddenly appear when traffic got heavy, and I’d put my left hand on the steering wheel.”
Yep, you done explained most, if not all, unexplained UFO cases. /sarc I mean the ones where swamp gas and Venus don’t cover it.
The crystal on my Rado watch is designed so this happens in some sunlight. (Beveled?) My cats like to play with the flashes on the wall.