Hello, I'm not very familiar with this problematics. So sorry for (maybe) incomprehensible terminology. I study physics and math and now I heard about chaotic behavior of many very fundamental equations describing a nature, when they evolve (when we want to know what will happen in future). I have never met such equation or sysetm. For example I'm not capable to imagine that I solve equation of motion for Mars and when I would like to know where mars will be after 10 years, I would find out from this equation some chaotic behavior. Could you explane me what is meaning of this or if I don't understand what someone said. Thank you all for response.