Prehistoric super civilization史前超文明

For the unsolved mystery, scientists believe that there are two explanations: one is the trace left by the alien's visit to the earth; the other is the prehistoric super civilization that appeared many times before the modern human civilization. Some scientists put forward the theory of periodic evolution of earth civilization. Biochemists believe that in the 4.5 billion years since the birth of the earth, the earth's creatures have gone through five major extinctions, alternating life and death, and the last one occurred 65 million years ago. According to this, it is inferred that there were advanced civilized creatures on the earth two billion years ago, but unfortunately they were destroyed in a nuclear war or a huge natural disaster. Hundreds of millions of years of vicissitudes have almost wiped out all traces of civilization, leaving only a few relics, which has become an unsolved mystery for modern human beings. Some people think that the destruction of the previous advanced civilization is due to the periodic change of the earth's climate or the periodic disappearance of the earth's magnetic field. When the solar system moves to a specific position in the universe, the earth will periodically appear a climate that is not suitable for human existence. The extinction of dinosaurs 65 million years ago is an example. The periodic climate change of the earth will lead to the periodic origin and evolution of advanced intelligent organisms.

对于不解之谜，科学家认为有两种解释，一是外星人访问地球遗留的痕迹；一是现代 人类文明之前，曾经出现多次高级人类的 史前超文明。有科学家提出地球文明周期 进化论。生物考古学家认为，地球诞生至今的45亿年中， 地球生物经历了5次 大灭绝，生死交替，周而复始，最后一次大灭绝发生于6500万年之前。有人据此推断，20亿年前地球上存在过高级文明生物，但不幸毁灭于一场核武战争或巨大的自然灾变。亿万年的沧海桑田几乎抹去一切文明痕迹，仅留存极少遗物，成了现代人类的不解之谜。有人认为，前一次高级文明的毁灭，是因为地球气候的周期性变化，或者 地球磁场的周期性消失。太阳系运转至宇宙空间某个特定位置时，地球会周期性出现不适应人类生存的气候。6500万年前恐龙的灭绝便是例证。地球的周期性气候变化会导致高级智慧生物的周期性起源和进化。