Some of the issues partially alleviated by using limited part of tail recursion optimization. You mark some function with tailrec keyword, and compiler verifies

Some of the issues partially alleviated by using limited part of tail recursion optimization. You mark some function with tailrec keyword, and compiler verifies that this function calls itself as the last statement. You also wouldn't expect complete stack trace from that function. At the same time it probably helps with 90% of recursive algorithms which would benefit from the tail recursion.