Algodoo

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I can't get it, why they do that?

der meint die Kreise die gestapelt sind ohoo und er meine die würden durch die Twilight Zone aufeinander bleiben

I've read about this before... you see, the area of the circles are so, so, soooooo far away from the center of the phun starting point (where you start creating stuff in phun) that the accuracy of the calculations have been simplified, and turned into a sort of abstract physics because if the whole phun area was as accurate as the middle, it would take up too much memory. something like that...

Ian exlained it very correctly.