The first time I tried Scala, I got a type error based on the result of an implicit conversion, which succeeded locally but not for the entire expression. It to

The first time I tried Scala, I got a type error based on the result of an implicit conversion, which succeeded locally but not for the entire expression. It took me a while to figure out what had happened. Advanced (mis) features such as this combined with encoding everything into objects with subtyping make Scala very complex. F# and OCaml are examples of much simpler languages that have most of the advantages (albeit no JVM).