Forth uses a stack machine. In this way, since calls to functions are really simple and easy, higher performance can be achieved. I love Lisp, but what you sug

Forth uses a stack machine. In this way, since calls to functions are really simple and easy, higher performance can be achieved. I love Lisp, but what you suggest is not really Forth and will also not give you the performance benefits and simplicity of implementation that Forth has.