Why can't people immigrate to the moon?

1. At present, no environment suitable for human survival has been found. According to the current development speed of human beings, 100 will be difficult to find. Science believes that the speed of the spacecraft will not exceed the speed of light, and we can't fly too far.

If it is possible to transform the environment, mankind is trying to transform Mars-planting grass on Mars. But even if it succeeds, it will be a long process.