A neat observation by Bartosz Milewski I didn’t think of before: just as an optic is a coupled coparametrised forward pass and parametrised backward pass (a fact that Bruno Gavranović used to great effect) - so a parametrised optic is coupled *bi*parametrised forward and backward passes

Abstract for an upcoming paper, to be released on the arXiv next week: Reinforcement Learning in Categorical Cybernetics

New blog post! It’s a more technical one today: Colimits of Selection Functions, by julesh cybercat.institute/2024/04/01/col…

New paper! Reinforcement Learning in Categorical Cybernetics, by Riu Rodriguez Sakamoto and me arxiv.org/abs/2404.02688 🧵 follows…

New blog post: Value Chain Integrity, by 🅾️𝕝𝕚𝕧𝕖𝕣 🅱️𝕖𝕚𝕘𝕖 econpatterns cybercat.institute/2024/04/04/val…

Another new paper! Rendering String Diagrams Recursively, by Celia Rubio-Madrigal and me arxiv.org/abs/2404.02679 🧵 follows:

New blog post! Modular Error Reporting with Dependent Lenses, by André Videla cybercat.institute/2024/04/08/mod…

New blog post! Another more technical one today: Enriched Closed Lenses, by julesh cybercat.institute/2024/04/12/enr…

New blog post: Building a Neural Network from First Principles using Free Categories and Para(Optic), by Zanzi Tangle, now at Monoidal Cafe cybercat.institute/2024/04/15/neu…

New blog post! Build Your Own Open Games Engine Bootcamp, Part I: Lenses - by Daniele Palombi Dan (cross-posted from the 20[ ] blog) cybercat.institute/2024/04/22/ope…

New blog post! Exploring Best Response Dynamics, by julesh cybercat.institute/2024/05/09/exp…

New blog post: The Blurry Boundary between Economics and Operations Research, by 🅾️𝕝𝕚𝕧𝕖𝕣 🅱️𝕖𝕚𝕘𝕖 econpatterns cybercat.institute/2024/05/17/eco…

New blog post! Reinforcement Learning through the Lens of Categorical Cybernetics, by Riu Rodríguez Sakamoto (Riu Rodriguez Sakamoto) cybercat.institute/2024/05/29/rei…

New blog post: The Yoga of Contexts I, by julesh cybercat.institute/2024/06/28/yog…

New blog post: Compositionality and the Mass Customization of Economic Models, by Philipp Zahn cybercat.institute/2024/07/15/use…

New blog post: Beliefs, Belief Propagation and Belief Clusters, by 🅾️𝕝𝕚𝕧𝕖𝕣 🅱️𝕖𝕚𝕘𝕖 econpatterns cybercat.institute/2024/08/15/bel…

New blog post! Foundations of Bidirectional Programming I: Well-Typed Substructural Languages, by julesh cybercat.institute/2024/08/26/bid…

New post: On Modelling, by 🅾️𝕝𝕚𝕧𝕖𝕣 🅱️𝕖𝕚𝕘𝕖 econpatterns cybercat.institute/2024/09/02/on-…

New blog post: Foundations of Bidirectional Programming II: Negative Types, by julesh cybercat.institute/2024/09/05/bid…