Life Observer

There are 2 trillion galaxies in the known observable universe, and our Milky Way is just an ordinary member of these 2 trillion. The Milky Way itself: about 100 billion to 400 billion stars (the sun is one of them), the earth is also among them, and there are hundreds of countries and more than 7 billion people on the earth. The earth has existed for about 4.54 Billion years, and humans have only existed for 300,000 years, but there are already countless people living on the earth. As we know, everyone's life is different. The same person makes different choices on the same thing at different stages of life. How many people's lives are interesting? Let's take a closer look.