Well, thank you for providing the limits. In light of those particular definitions, I don't see how anyone could ever make a simple choice of one over another. There are things an individual can do more efficiently and there are things that a government can do much better than an individual or when more than 1 individual needs to be involved. And, paradoxically, there are places where both need to overlap. In light of the article listed in the OP, I can't think of how liberalism could ever "run it's course" or probably more to the point how we could ever truly be free of the yoke of government. Things that you might feel free to do may impact or impinge MY freedoms, without a governmental umbrella I would either be forced into accepting my new limitations, finding a new place to be where I was less impacted, or to enter into direct conflict with you (remember our right to bear arms here).
This brings up an interesting point, because government itself plays many different roles as well. It has the role of controller, initiator, and arbiter. And of course, these also need to overlap in function.
And what ties this altogether is that we collectively create the functions of our government based on collective needs (which really is the root of Socialism, isn't it?). This means that individuals may or may not be properly served, and that's the drawback of any form of government aside from anarchy. However, this is mitigated by allowing localities to set most of their own rules - another overlap in function. This allows for us to move from the individual to the local collective level for dealing with the federal government and other collectives as an individual voice.
Here's where I have a problem with the definition set. If conservatives want to limit the scope of government, aren't they in fact attempting to circumvent democratic process? Example: The people in South Dakota want to build a pipeline that connects to a station in Illinois which must span the state of Iowa. The people in Iowa don't want this pipeline, but both SD and IL would benefit. Couldn't SD and IL override the wishes of the people in IA with limitations on the scope of the federal government? Now consider, once the pipeline is built it breaks in IA. Again, government's scope is limited, who pays for the massive clean up? Who makes the landowners whole after a major accident? And, what happens if the company that built the pipeline dissolved right after completion (which many companies do), are the people of IA SOL? And maybe more importantly, do we think it would be fair to leave them to their own devices? Tough luck? That's not a society at that point, it's simply groups of people and the law of the jungle. Is that the America that Conservatives foresee and would bring upon the rest of us?
There MUST be balance between both ideals. There are times when it makes sense to take risks and times when it's better to take a safer path. I believe that collectively, when presented with the proper data and stripped of social labels (liberal, conservative, Republican, Democrat, Socialist, Communist, etc) we can make the decisions that make the most sense to the most people. And that was the founding principle for our country.