That is the Jetson Myth. Science and technology has its limitations. We have to live with the Earth and adapt to its limitations. We can not rule the Earth with technology. That is a cultural based myth. We have to care for the Earth by limiting human population to a level the can be sustained by available resources. The resources in Space are unobtainable. That is because the laws of physics make it so.

To have an abundant future we must adapt to our environment and honor it. Trying to control it with technology is totally impossible. We must use technology to help us adapt to the Earth, not to exploit it. Thinking that we can jump into the stars after we used up the Earth, is totally crazy.