What can it do? - Brace stacks
evaluated Array constructor: {1. 2. 1 + 2. 2 * 2 } -> #(1 2 3 4)
conversion to other types with: "as: aClass"
{1. 2 * 2. 1 + 2. 2} as: SortedCollection -> SortedCollection (1 2 3 4)parrallel assignment:
|a b c|
{a. b. c}:= #(1 2 3) -> a:= 1. b:=1. c:= 3
{a. b. c} := {b. a} -> a and b swapped