Also people think already about building a city on the Moon. It can be a giant lab.
To protect people from harmful radiation and the dramatic weather changes it can be built on the Dark Side of the Moon.
How would you support people with air water and food there? This is all can be resolved even at our current technological level. Also people who got used living on the Moon would easier be suited to travel to outer space.
Looks like we are going to far away in future kids. But it would be your task to build the cities of the future. Think yourself, maybe you already have some brave ideas?
So, kids of 1970s. Do you have some brave projects? Haven’t you yet been disappointed by YOUR city of the future?