The article starting with Einstein's example identifies the problem as demand/provision issue.

I agree, but the main problem is that we continuosly try to find provision for our artificially inflated, costantly increasing demands, instead of identifying the provision first and adjusting the demand accordingly.

Humanity is acting outside of the natural system.

Despite us being the product of the same natural evolution as any other living creature, despite our biological body, or psychology being based on the same natural laws and principles as anyhthing else in the system from the inanimate, to vegetative and animate levels of nature, we decided that the system and its laws do not apply to us and we can invent our own subsystems, laws and principles and start acting outside of and against the natural system.

I do not think we should have any doubt, and any new natural catastrophe, sudden climate change proves the natural system we exist in is infinetely greater, and stronger than we are, and at present we cannot even predict the next blows, changes let alone preventing or using them purposefully.

By the 21st century humanity got to the point where over 90% of human activity, human consumption and production is obsolete, it has no natural basis whatsoever.

We are chasing, buying and producing goods and pleasures we have no natural desires for, which are directly harmful for ourselves and the environment, but we created an artificial matrix in order to generate profit which matrix keeps us as slaves. We become addicted and cannot get out.

But nothing artificial, unnatural is sustainable in a natural system, and today in the form of the global crisis and other imminent threats towards the human system we started experiencing this natural adjustment, where the previously working structure started slipping through our fingers and there is absolutely nothing we can do to stop this self-adjusting, cleaning process.

Sustainable development means humanity returning into the natural system by adapting, adhering to its laws, living within means, satisfying natural desires and necessities.

The process has to start with a global education program, based on already available scientific information, so everybody understand those laws, and sees the necessity and advantage in accepting them.

We have no free choice in this, the adaptation will happen whether we want it or not.

But we can choose if we want to be beaten to it, or we want to be conscious, proactive partners in this process, becoming fully aware guardians, governors of the system.

This is what only humans are capable of.