I've seen mountains that really look like cut off giant trees just like that last picture with the top of it looking so flat... so I was really wondering... I do know for sure that the patterns assimilate to the cell structure usually and some of those mountains look somewhat like having the plant cells structure. But who knows.
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There could be some law of physics that results in both mountains and trees have a similar shape. For example, I heard recently that any sort of granular substance such as sand, gravel, salt, or anything similar, if it is poured into a pile in one place, the slopes will always have the exact same slope, about 32 degrees, no matter what the substance is or how it's poured. Scientists aren't quite sure why this is the case.
Or why do all snowflakes have six points? I don't know, some law of physics probably.
There are other odd consistencies or similarities we see in natural things that are the result of some sort of law. I think the similar type of design you're talking about between mountains and trees could be a similar phenomenon.
Their idea is that the giants/nephilims angel cut them off but those mountains are pretty high, I wonder if the giants got THAT TALL.
No, this a gnostic early Church error. The word "giants" in Genesis means giants of wickedness, not physical giants.