Dogmafood writes:
Would the sailing stones found in Death Valley qualify?
There are a lot of
interesting phenomena in the world, aren't there? The question isn't really whether they're "explainable" or not but how well-understood they are at the present time.
Years ago, I woke up one morning to find my entire lawn covered with snowballs bigger than my fist. You could plainly see where they had been rolled but there was no sign of human tracks. It was tempting to think it was a prank but on my way to work, I saw that the entire city was covered with the same snowballs.
Of course, it's a
rare but fairly well-understood phenomenon which depends on an exact set of wind and snow conditions. I've only seen it once and I've seen 56 white Christmases.
The key to ruling out an "unnatural" cause was the fact that
everybody could observe it and
somebody could explain it.
Life is like a Hot Wheels car. Sometimes it goes behind the couch and you can't find it.