I was exploring on the internet the word "post rational". Last year during the presidential campaign, Rachel Maddow used it to describe Hillary Clinton applying a campaign strategy that may have been rational to try at one point in the campaign but was irrational at a later point. Others have used "post-rational" offhandedly to describe a society that has rejected depth and analysis in favor of that which gives satisfying emotional appeal.
I have a working definition of a "post-rational society" as a society that does not value a person’s individual journey of rational effort but considers itself to be above and beyond having such a value. This society is "post-rational" because it considers much personal rational effort to be passe and outdated -- that life has become too complex for an individual person to sort out. This society simultaneously favors experts, like scientists while also valuing collective expressions of emotions that express themselves through trends.
Sometimes I surf the internet and post comments on someone's blog post that interest me. I'll leave a long enough post and link it to my blog post here that it becomes a de facto post on my own blog site. On a site called Us and Them, I posted comment to a question that the author posed, which can be summed up as follows -- what are the government / institutional implications of a society that considers the individual to be irrational and that only experts are qualified to sort out what is best for us?