What's an interesting fact you learned recently?

https://lemmy.blahaj.zone/post/29432102

What's an interesting fact you learned recently? - Blåhaj Lemmy

Lemmy

If you are lost in the wilderness and a plane comes in to look check on you, do not pump your fist in the air. That is the signal you are fine and don’t need help. Learned it in a recent Mr. Ballen youtube.