The laws of nature are discovered as specific mathematical structures. Why these structures and not other? Why are they mathematically beautiful? The talk reviews an original approach to these questions by the eponymous award-winning article; recently, it was published by Springer, together with all the winners of the 2015 contest of the Foundational Questions Institute. Everybody is welcome. Feel free to come with your lunch. https://fermisocietyofphilosophy.wordpress.com/ .