America’s greatest innovations and commercial blessings were unforeseen by those at the national headquarters. They emerged, bottom up, from tinkerers and business outsiders who could never have attracted the attention of a president or some public-private investment commission.

I would have been more respectful of this decentralizing genius than Obama was, more nervous about dismissing it for the sake of collective action, more concerned that centralization will lead to stultification, as it has in every other historic instance.

I also think Obama misunderstands this moment. The Progressive Era, New Deal and Great Society laws were enacted when America was still a young and growing nation. They were enacted in a nation that was vibrant, raw, underinstitutionalized and needed taming.

We are no longer that nation. We are now a mature nation with an aging population. Far from being underinstitutionalized, we are bogged down with a bloated political system, a tangled tax code, a byzantine legal code and a crushing debt.

The task of reinvigorating a mature nation is fundamentally different than the task of civilizing a young and boisterous one. It does require some collective action: investing in human capital. But, in other areas, it also involves stripping away — streamlining the special interest sinecures that have built up over the years and liberating private daring.

Reinvigorating a mature nation means using government to give people the tools to compete, but then opening up a wide field so they do so raucously and creatively. It means spending more here but deregulating more there. It means facing the fact that we do have to choose between the current benefits to seniors and investments in our future, and that to pretend we don’t face that choice, as Obama did, is effectively to sacrifice the future to the past.

Obama made his case beautifully. He came across as a prudent, nonpopulist progressive. But I’m not sure he rescrambled the debate. We still have one party that talks the language of government and one that talks the language of the market. We have no party that is comfortable with civil society, no party that understands the ways government and the market can both crush and nurture community, no party with new ideas about how these things might blend together.

But at least the debate is started. Maybe that new wind will come.