Tim Sweeney is the founder and CEO of Epic Games, creators of Fortnite. Sweeney started Epic in 1991 with the release of its first shareware game, built the first generation Unreal Engine, and is now working together with 4000 others in the company to build the metaverse, a real-time 3D social entertainment ecosystem.
Verse is a new programming language, being designed at Epic Games as the language of the metaverse. Verse is a functional logic language, with a bunch of innovative ideas. Like Haskell, Verse is declarative (a variable in Verse stands for just one, immutable value), and higher order (lambdas are first class). But Verse goes well beyond Haskell, with existential variables, unification, expressions that yield multiple values, and much more besides. In this talk we'll give you a sense of what functional logic programming is about, what it looks like to program in Verse, and how we can give meaning to Verse programs using rewrite rules.