It means balanced budgets -- not just once-in-a-blue-moon or even occasionally, but every year. Debt is the most obviously "unsustainable" aspect of our unsustainable development economic model. In turn, this means an end to obscenely excessive military spending, an end to corporate subsidies, and (of course) not one more penny in welfare for the financial crime syndicate. Sustainable development means engaging in long-term planning (and budgeting) with the expectation of near-zero growth -- i.e., sustainable growth. It also means eliminating the world's most-egregious economic parasites: the oligopolies that have infested nearly every facet of our economies. Regular readers are already aware that, since the dawn of capitalism, capitalist theorists have been in universal agreement that oligopolies (and monopolies) are entirely parasitic entities which can never be allowed to exist in any economic system -- even one which labors under the delusion of infinite growth in a finite system. Obviously in any sane economic system (i.e. one modeled on sustainable development), we have no room for economic parasites. Note that the oligopolies are also the primary villains for the massive, structural unemployment that grips all of our economies -- the worst in our history. The one thing which oligopolies are efficient at is eliminating jobs. For newer readers, understand that smashing the oligopolies doesn't require creating "new laws." It simply means enforcing laws which we have had for a century -- laws that used to be enforced before our corrupt governments (and regulators) began serving the Oligarchs openly. Obviously an economic system based on the premise of unsustainable development is no more plausible a strategy than proposing to power our economies with perpetual-motion machines. However, to operate a wholly unsustainable system, and then on top of that to allow our economies to be blood-sucked with gigantic, perpetual interest payments and by corporate mega-parasites, requires a new adjective -- a level beyond words such as "suicidal" or "insane." Naturally we hear none of this from the mainstream media, which is itself, one of the largest and most-odious of our oligopolies. Claiming to possess a "free press" while allowing the vast majority of these media to be owned and operated by a handful of Oligarchs is no more rational/plausible than basing entire economies on unsustainable development. It's too late to salvage our current system. The best we can hope for is that we throw out our (current) Traitor Governments and install honest representatives -- who apply the brakes to our unsustainable economies rather than accelerating toward the chasm ahead. After that inevitable (and imminent) "crash" is when we need to implement sustainable development. This means that the time to start talking about it is today. Follow Jeff Nielson @bullionbullsThis article is commentary by an independent contributor, separate from TheStreet's regular news coverage.