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<div style="direction: ltr; text-align: left;"><span style="font-family: Arial, Helvetica, sans-serif; font-size: 14px;">School of History and Philosophy of Science</span></div>
<div style="direction: ltr; text-align: left;"><span style="font-family: Arial, Helvetica, sans-serif; font-size: 20px;"><b>RESEARCH SEMINAR</b></span></div>
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<h1 style="direction: ltr; text-align: center; line-height: 1.2; margin: 0px; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 18px; color: rgb(230, 70, 38);">
The Liar paradox, the halting problem and the edge of chaos</h1>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 14px; color: rgb(51, 51, 51);"><b>Mikhail Prokopenko (USyd)</b><br>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 14px; color: rgb(51, 51, 51);"><b>Dates:
</b>Monday, 04/03/2024<br>
<b>Time: </b>5:30pm<br>
<b>Venue: </b>New Law (F10), Level 3, Seminar Room 344<br>
<b>How to register: </b>Free, no registration required<br>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: 14px; color: rgb(51, 51, 51);"><b>Abstract:
</b>We will explore several fundamental relations between formal systems, algorithms, and dynamical systems, focussing on the roles of self-reference and computational undecidability. This comparative analysis will emphasise three factors: (i) the program-data
duality; (ii) the potential to access an infinite computational medium; and (iii) the ability to implement negation. Importantly, the program-data duality requires that a computational agent must be able to store and process encoded information, as well as
create self-referential meta-level simulations. Finally, within Gödel – Turing – Post framework, we will argue that undecidability leads to novelty generation, via the emergence of functional self-descriptions across major transitions: genetic, linguistic
and cultural.<br>
<br>
<br>
<b>Bio: </b>Prof. Mikhail Prokopenko leads the Centre for Complex Systems at the University of Sydney. He holds PhD in Computer Science, MA in Economics, and MSc in Applied Mathematics. Mikhail has a strong international reputation in modelling and simulation
of complex self-organising systems, with over 200 publications and h-index of 43. His cross-disciplinary research in information theory, critical phenomena and artificial intelligence has been applied to pandemic and crisis modelling, systems biology, urban
dynamics, and other diverse areas.</span></div>
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