â€œWeâ€™re not the Borg from Star Trek. We want to engage in private projects we do by ourselves and not with others," says Jason Brennan, an associate professor of philosophy at Georgetown University.

Brennan's new book, Why Not Capitalism?, casts a critical eye on a notion with wide appeal among academics, politicians, and the general public: That even though history has shown that socialism is unworkable in practice, it's still the best way to run society in theory.

Brennan says that such thinking neglects the fact that even in utopia people will have significantly different visions of a life well lived. â€œYou want a system under which you can realize all these different conceptions of the good life and the good community,â€ he argues. Even in a world free of petty rivalries, tribalism, and human failings, capitalism would still be superior because it uniquely affords citizens the rights and freedoms necessary to customize their lives and pursue their own, personally meaningful projects.

Interview by Rob Montz, who also edited the piece.

Camera by Amanda Winkler and Joshua Swain.

About 8 minutes.

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