Open-Ended Evolution: Perspectives from the OEE Workshop in York

Tim Taylor, Mark Bedau, Alastair Channon, David Ackley, Wolfgang Banzhaf, Guillaume Beslon, Emily Dolson, Tom Froese, Simon Hickinbotham, Takashi Ikegami, Barry McMullin, Norman Packard, Steen Rasmussen, Nathaniel Virgo, Eran Agmon, Edward Clark, Simon McGregor, Charles Ofria, Glen Ropella, Lee SpectorKenneth O. Stanley, Adam Stanton, Christopher Timperley, Anya Vostinar, Michael Wiser

    Research output: Contribution to journalArticlepeer-review


    We describe the content and outcomes of the First Workshop on Open-Ended Evolution: Recent Progress and Future Milestones (OEE1), held during the ECAL 2015 conference at the University of York, UK, in July 2015. We briefly summarize the content of the workshop's talks, and identify the main themes that emerged from the open discussions. Two important conclusions from the discussions are: (1) the idea of pluralism about OEE—it seems clear that there is more than one interesting and important kind of OEE; and (2) the importance of distinguishing observable behavioral hallmarks of systems undergoing OEE from hypothesized underlying mechanisms that explain why a system exhibits those hallmarks. We summarize the different hallmarks and mechanisms discussed during the workshop, and list the specific systems that were highlighted with respect to particular hallmarks and mechanisms. We conclude by identifying some of the most important open research questions about OEE that are apparent in light of the discussions. The York workshop provides a foundation for a follow-up OEE2 workshop taking place at the ALIFE XV conference in Cancún, Mexico, in July 2016. Additional materials from the York workshop, including talk abstracts, presentation slides, and videos of each talk, are available at
    Original languageUndefined/Unknown
    Number of pages16
    JournalArtificial Life
    Issue number3
    Publication statusPublished - 1 Aug 2016

    Bibliographical note

    © 2016 Massachusetts Institute of Technology. Artificial Life 22: 408–423 (2016) doi:10.1162/ARTL_a_00210 Published under a Creative Commons Attribution 3.0 Unported (CC BY) license.


    • Open-ended evolution
    • Ongoing evolution
    • Perpetual novelty
    • Adaptive evolution
    • Dynamical Hierarchies
    • Major transitions

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