Scala 3 slowed us down?

The problem with Scala 3 is that nobody asked for it. The problem with Scala 2 is that the type inference part of the compiler is still broken. Nobody worked on that. Instead they changed the language in ways that don't address complaints. Completely ignore the market and deliver a product nobody wants. That's what happened here.

PS Perhaps they should make an actual unit test suite for their compiler. Instead they have a couple of dozen tests and have to guess if their compiler PR will break things.

I tried getting into Scala several times and kept going back to Clojure. Unless you are into type system minigames Clojure has many of the things Scala advertises but without the dumptruck of Scala overhead and complexity. Another commenter briefly touched on this but it's a language made by academics for academics to play with language design. It was a little weird it blew up in industry for a while.