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I helped organize a conference called Categories at the Crossroads at a castle in Germany called Schloss Dagstuhl. It happened a couple of weeks ago but I haven't had time to blog about it yet. The overall goal was to revitalize applied category theory, and I'll have a lot more to say about that sometime. But my own talk was an experiment at combining ecological themes with category theory:
It was a somewhat risky mixture of ideas, but I think it went over well for this particular audience - people interested in applications of category theory, and more generally in 'big ideas'. I'll have to blog about this too sometime.