Timely Renewal of Ideas

In is interesting to see the way ideas ebb and flow through the public consciousness. Some are current for a time, fade away and then re-emerge, newly apposite to changing circumstance. As books fall from best-seller lists, so do they occasionally return years later.
I am thinking of Ayn Rand's "Objectivism" (the ideas) and Atlas Shrugged (the books). This submission by Amit Ghate to Pajamas Media is instructive.