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Episode 8 14.03.2012
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When will robots walk through our doors, cook our meals, and potentially steal our identities? Yoseph Bar-Cohen surveys the frontier of electroactive polymers, biomimetic actuators, and the ethical minefield of human-like machines that could one day be indistinguishable from us.
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Bar-Cohen frames biomimetics as a field that touches everything from clothing inspired by spider silk to drills modeled on gophers. His current work spans bioinspired drilling systems and legged rovers designed to climb steep terrain on other planets, drawing inspiration from mountain goats. He highlights the octopus as a particularly fascinating model organism, noting its ability to squeeze through narrow spaces, camouflage itself, and manipulate objects with soft tentacles. Replicating these capabilities requires materials science breakthroughs that remain years away.
The interview provides a detailed overview of electroactive polymer technology, the closest engineering analog to biological muscle. Bar-Cohen distinguishes two fundamental categories: field-activated (physics-based) polymers that require high voltage but can sustain position without power, and ionic (chemistry-based) polymers that operate at low voltage but suffer from drying and position drift. Current EAP actuators produce forces in the range of 10 kilograms but remain roughly an order of magnitude weaker and slower than biological muscle. His arm-wrestling challenge between human and EAP-driven arms provides an intuitive benchmark for the technology gap.
Bar-Cohen confronts the ethical implications of increasingly human-like robots with striking directness. He envisions scenarios where robotic clones could rob banks with your fingerprints and DNA, where household robots could be hijacked to surveil celebrities, and where military biomimetic birds could cause enemies to kill all real birds. Rather than advocating for bans, he argues that society must develop solutions incrementally, just as it has addressed spam, computer viruses, and automobile safety. The conversation reveals a researcher who sees both the transformative promise and genuine dangers of the coming robot revolution.
Tagged as:
artificial muscles Bar-cohen Biological Muscle electroactive polymers Polymers Robots
About the author call_made
Both the triumphs of humanity and its most evil deeds have resulted from collaboration. In a time where humanity is required to aspire to the former and minimize the latter, the question arises of how collaboration arises and why it fails. Surprisingly, this phenomenon, so central to who we are, is not well understood. Hence, a collaborative effort is required to understand collaboration in its full biological, psychological, sociological, cultural, and economic complexity and to translate this understanding into operational impact. This series of podcasts is one step toward achieving these complementary goals. The Collaboration Podcast presents interviews with people who are central orchestrators of collaboration in various domains including business, government, science, art, health, sustainability, and the military. The discussions were conducted by Prof. Dr. Paul F.M.J. Verschure and members of the Program Advisory Committee of the Ernst Strungmann Forum on Collaboration (https://www.esforum.de/forums/ESF32_Collaboration.html) during 2021 and had the goal to sketch a map of opportunities, challenges, and obstacles in human collaboration. The forum took place in May 2022, and now we would like to share this series of interviews with a broader audience. The full report of the Forum will be published in 2023 by MIT Press. The podcast was produced by the Convergent Science Network (https://www.convergentsciencenetwork.org/). Context: The stability of social systems depends critically on realizing sustainable methods of “collaboration,” yet how and by which means collaboration is achieved is not clearly understood; neither are the conditions or processes that lead to its breakdown or failure. Collaboration can be understood as cooperation between agents toward mutually constructed goals. Part of the reason for our lack of understanding is that the phenomenon of collaboration is, by nature, a highly multidisciplinary problem, and effective research into its complexities has been difficult to achieve across the broad range of scientific and technical disciplines involved. The need for a fundamental understanding of collaboration, however, has become increasingly important. Not only does humankind demand answers as it attempts to address critical challenges at multiple scales (e.g., climate change, migration, enhanced automation, social and economic inequality), but ever-increasing technological and economic means of interconnecting people and societies are disrupting long-established, familiar patterns of how we interact. Radical technological changes that are ongoing have the potential to reshape collaboration in ways that are currently hard to predict or influence (e.g., by altering configurations in interaction, information creation, and modes of communication). On one hand, such changes could disrupt hitherto stable forms of collaboration by affecting critical communication channels and traditional roles, as can be observed in the rapidly changing patterns in governance, commerce, and social interaction. Conversely, technology could lead to the emergence of novel, successful forms of collaboration that deviate from traditional “hierarchical” architectures. Evidence of this can be seen in areas as diverse as highly automated manufacturing plants, the open science movement, collaborative software repositories, user-centered services, and the sharing of economy-based modes of organization. Without a fundamental understanding of the mechanisms, processes, and boundary conditions of collaboration, it is not possible to evaluate or predict which of these possible scenarios are sustainable or even plausible. The Forum “How Collaboration Arises and Why it Fails” (May 8–13, 2022, Location: Frankfurt am Main, Germany) Chairs: Andreas Roepstorff and Paul Verschure Program Advisory Committee: Jenna Bednar, Julia R. Lupp, Bhavani R. Rao , Andreas Roepstorff, Ferdinand von Siemens, and Paul Verschure
14.03.2012
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