Future: Wouldn't it be nice if...

...not only could languages run together

...but we could also translate from one language to another?

Perl 6  --+                  +--  Perl 6
Python  --|                  |--  Python
PHP  -----|                  |--  PHP
Ruby  ----+----- Parrot -----+--  Ruby
Scheme  --|                  |--  Scheme
Smalltalk |                  |--  Smalltalk
APL     --+                  +--  APL