This is one of my major grips about Scala, but sometimes I'm also guilty of overusing this feature how you do Google <:< or ~?> or λ. Its even worse when the api you are working against doesn't have a "normal" function for what you are trying to do. It does take a while to remember them but even worst it makes it hard for new users to follow your code. Reminds me of some for a lack of a better work "voodoo" Perl code way back.