Language design goes hand in hand with compiler's design. No wonder we have so many languages being born every year. Different mix of ideas being tried in each

Language design goes hand in hand with compiler's design. No wonder we have so many languages being born every year. Different mix of ideas being tried in each of them or forgotten lessons being rediscovered. Just taking a look at what D, Rust, Lisp and Scala proposes will give one the chance to ask crucial questions about what are the implication of that guarantee, pros, cons and how it will all work out.