%- add [2 3]
%- is the call rune taking one cell of arguments.
a call passes its arguments as one cell.
(add 2 3) abbreviates it.
glossary
%- calls a gate on one argument (or one cell of arguments).
%-(dec 8) is 7.
irregular forms:
(gate arg) is %-(gate arg)
add sums two atoms.
(add 2 3) is 5.
:* makes a tuple of many elements, nesting to the right.
:*(1 2 3) is [1 2 3].
irregular forms:
[a b c d] is :*(a b c d)