It's that edge of FORTH
Prefix
Infix
Postfix
Rebol Red RenC
all have interesting flow
But it can be confusing to read if you expect syntax like Lisp
Someone somewhere one wrote that Rebol started life as LISP without Parentheses
Then borrowed stuff from Wolfram
I'm no expert
But it did help me understand
Something
I've long wished for nice slide lecture strange Loop that would present Rebol Red RenC in context
Rich Hickey
Douglas Crockford
heads up