Comment 1:

The one aspect that is probably not going to be intentionally considered, but that is the only option for stability is this:

Find a purpose for human animals as a contributing part of their own ecosystem.

It sounds simple. It is. Almost everything we have come to know about civilization is based on city-based extraction of resources in order to build non-contributing structure and entertainment.

The food production system is currently based on fossil fuel technology so that productive wealth can be used for unnecessary purchases, rather than for food.

Those unnecessary purchases are mostly to entertain people who are useless to their own future and the future of their immediate environment.

If people can be engaged in their environment's future, then all economic activity becomes sustainable activity.

In other words, the basic problem with "humanism" is "human": believing that what is good for people is the End-all, Be-all morality, like an undefined, Super-natural being that never has to show theirself. In the natural, real world, though, everything is dependent on something else. Belief that humans are the definition of evolution and importance just because we have language and technology.

The planet spawned us. Too many people believe it was the other way around.

Civilization is built on that misconception, and if there is any chance at all, it will only be found if humans humble ourselves and learn to give more than we take from the world.

Space presents us with zero chance of survival at this step in our technology. There is no scenario where humans can live without this planet in some form of oxygen-generating, temperature moderating and radiation-filtering condition that can feed us.

Every dollar is a petrodollar at this point, and every dollar spent is a knife in the back of the planet.