I think we do, finno, but who will believe us?Nobody knows actually, how round holes form.
I think you would be told it was a bubble in the magama, or a soft inclusion that has weathered away. Over millions of years of course.Like we see, it doesn’t go to down like usually. Plasma dicscharge is only explanation, what can explain everything, but that’s only my opinion.
but how potholes form? I don’t know, but this picture can help. I don’t know, is it manipulate (is that towerstone originally from that hole).
Someone needs to try to move the rock, find out if it is attached to the bedrock.
Here is another small pothole that was packed tight with the disk type rocks, a couple of multi-coloured pebbles, and a coarse sand that was more like tiny, rounded or even cone-like glassy particles. These disk type of objects are often packed between the bigger pebbles and cobbles, and I have seen up to 4 of them, all the exact same type of rock, and having 'witness marks' on both sides where the impression of the adjoining ones quite clearly visible on either side. These could not have been washed into an empty hole and arranged themselves side by side, so how did they get there?
Here is an example of 3 side by side from the pothole before I took the contents out. It took almost an hour, and I had to break the top one to get it out as it was in there so tight. The rest of the contents were very tightly packed, like a 3D jigsaw puzzle. I believe this is where all the pebbles and cobbles, and sand and the tiny particles are formed. I'd say they have been there since their creation, and I don't think it was too long ago.
Some of the contents. I should have collected the sand and tiny components to look at more closely at home, but didn't think of it till later. I'm still a newbie at this geology stuff, I'll get it right eventually, I think.
A close-up of the disks. These are not as back-to-back as some I've come across, but the odds of them ending up like that by chance must call for some pretty long odds.