I totally agree, := should be used more. (More than once I've had (define := define) in my personal Scheme code.) Unfortunately my enthusiasm in the past has be

I totally agree, := should be used more. (More than once I've had (define := define) in my personal Scheme code.) Unfortunately my enthusiasm in the past has been met with the quip "Any language that uses := as the assignment operator inevitably dooms itself to never becoming more popular than Pascal." Not many people care anymore. (They did at one point; a lot of 80s and some 90s C code is so macro'd up it looks a lot like a dialect of BASIC.)