Whether it is called a public forum or a public sphere or a marketplace of ideas, the reality of open and free public discussion and debate was considered central to the operation of our democracy in America’s earliest decades. Our first self-expression as a nation — “We the People” — made it clear where the ultimate source of authority lay. It was universally understood that the ultimate check and balance for American government was its accountability to the people. And the public forum was the place where the people held the government accountable. That is why it was so important that the marketplace of ideas operated independent from and beyond the authority of government. The three most important characteristics of this marketplace of ideas were the following: It was open to every individual, with no barriers to entry save the necessity of literacy. This access, it is crucial to add, applied not only to the receipt of information but also to the ability to contribute information directly into the flow of ideas that was available to all. The fate of ideas contributed by individuals depended, for the most part, on an emergent meritocracy of ideas. Those judged by the market to be good rose to the top, regardless of the wealth or class of the individual responsible for them. The accepted rules of discourse presumed that the participants were all governed by an unspoken duty to search for general agreement. That is what a “conversation of democracy” is all about.

The remedy for what ails our democracy is not simply better education (as important as that is) or civic education (as important as that can be), but the reestablishment of a genuine democratic discourse in which individuals can participate in a meaningful way — a conversation of democracy in which meritorious ideas and opinions from individuals do, in fact, evoke a meaningful response. And in today’s world, that means recognizing that it’s impossible to have a well-informed citizenry without having a well-connected citizenry. While education remains important, it is now connection that is the key. A well-connected citizenry is made up of men and women who discuss and debate ideas and issues among themselves and who constantly test the validity of the information and impressions they receive from one another — as well as the ones they receive from their government. No citizenry can be well informed without a constant flow of honest information about contemporary events and without a full opportunity to participate in a discussion of the choices that the society must make. Moreover, if citizens feel deprived of a meaningful opportunity to participate in the national conversation, they can scarcely be blamed for developing a lack of interest in the process. And sure enough, numerous surveys and studies have documented the erosion of public knowledge of basic facts about our democracy. For example, from the data compiled by the National Election Studies on one recent election, only 15 percent of respondents could recall the name of even one of the candidates in the election in their district. Less than 4 percent could name two candidates. When there are so few competitive races, it’s hard to blame them. Two professors, James Snyder and David Stromberg, found that knowledge of candidates increased in media markets where the local newspaper covered the congressional representative more. Very few respondents claimed to learn anything at all about their congressional elect

According to Princeton’s Andrew Dobson, “Climate change is disrupting natural ecosystems in a way that is making life better for infectious diseases.