The ideal of moving into space

The development of science and social civilization promotes and restricts each other. When a civilization develops to a certain stage, the necessary things will appear. Such as telephone, electric light, gravity, condoms, etc. Even if the person who invented/discovered them didn't invent/discover them at that time, others would invent/discover them. The same is true of the development and evolution of primitive society, slave society, feudal society, capitalist society and socialist society.

Therefore, to reach an era, science and society must meet the conditions at the same time, and human civilization can make great progress. Fire-primitive society, farm tools-feudal society, steam engine-capitalist society, so it can be seen that when science and technology and human society develop to a very high level (after a long time), human beings can really immigrate into space.