You're right that the marketplace of ideas is the weak point in the article. Because it's not a marketplace; it's many marketplaces, and different ideas have fo

You're right that the marketplace of ideas is the weak point in the article. Because it's not a marketplace; it's many marketplaces, and different ideas have found their purchase in each places. Microtargeting, in other words. The press, owing to its capital investment, was necessarily more unifying, more focal, than the media of today. Now, one can be bombarded with information from all angles, and if you're not travelling between marketplaces, you can get an odd idea of what the going rate for truth is. Information truly obfuscates, just like choice is fatiguing.