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This hourglass shaped-curriculum (the climax of the history of undergraduate liberal arts experiments at The New School I wrote a few years ago) proved too hard to implement, especially given that many students don't spend a full four years here, but it's an exciting way of making liberal arts more than a background or a foundation for disciplinary learning. It's different also from the programs we'd learned about which devote the final year to an internships, independent or community projects. Certainly starting to apply what you've learned in the the "real world" is valuable (I'm reminded of Naropa's inhale-exhale-inhale-exhale model). But this supplements that with a return to the community of learning.
The "perspective and obligations of the educated non-expert" are that of the liberal arts in a profound way. (We noted the dangerous contrary, "uneducated experts.") Students still should become "intellectual[ly] self-sufficient" but this includes knowing the limits of your expertise, and how to find and work with those who know what you don't. These imagined senior seminars are models of a "complex, rapidly changing and free society" sustained by habits of humility and collaboration, anchored in communities of lifelong learning. Nice!
Beyond the fact that this proved logistically too challenging for The New School of the 1980s, these ideals were at best rhetorical for our students, half of them from non-liberal arts parts of the university and many near or at the end of their studies. But as a dynamic way of thinking about the relationship of disciplinary expertise and liberal learning, I hope the Heilbroner Report offered some useful takeaways. In a tiny way, our mini-course was a taste of what such a senior seminar for educated non-experts would be like.