nice execution of an interesting idea! i see removing the parens as an effort to rid the 'lispy' feel to the language, but how do you go about lexical scoping

nice execution of an interesting idea! i see removing the parens as an effort to rid the 'lispy' feel to the language, but how do you go about lexical scoping without parens like clojurscript or indentation like coffeescript? For example, fact 'init variables and return expr' { should let(a=1,b=2){a+b} => 3; } to what point will the let bindings be valid?