If that circular rock thingy is man made, than there must have been a worldwide advanced civilisation of billions of people in the past, all of them putting layers -I'm sorry, circles- in the rocks...

Instead of making a nice picture of an ordinary rock, why doesn't he show a man standing somewhere inside that hundreds of meters of tunnel systems he explored? It does not catch on film?

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To the regular visitor of internet bulletin boards it is clear that it's an excellent idea your parents get to choose your real name.