Erlang certainly seems very close to that description. One principle that gets flouted for convenience is exposing internal "objects" directly via accessorsor o

Erlang certainly seems very close to that description. One principle that gets flouted for convenience is exposing internal "objects" directly via accessorsor other methods. Instead, the idea behind message passing has to be clarified as passing serializable messages - i.e. they're "just data". This restriction is a powerful one and permits the kind of encapsulation being talked about.