That's not literally just 3 minutes of talking about rocks. The start of the video goes straight into talking about a path, balance and using words (the joke is funny, but acknowledging that wouldn't work with the pedantry...).<br><br>There's got to be a bunch of stuff like that underwater, underground and of course outside our planet. The possible examples that we could see without specialist equipment to get there would be things like ball lightning which may well be explainable in a fairly simple way and yet we don't know the explanation yet.