• make force be steppable
• if you ommit a paran, the parser sometimes drops a term ie. ; even? #n <=> ::even? !(math (#n % 2) will parse to (even? #n <=>)
• math #m <=> !(bash bc <<< #m) failed to parse correctly
• rassoc introduce empty groups for things that are on the left most edge ie. ; rassoc 3 math gives us macros that look like: (() math #m)

(if true then [b] else [c]); [rest]
-----------------------------------
[b]; [rest]

if false then [b] else [c]; [rest]
-------------------------
[c]; [rest]

if [a] then [b] else [c]; [rest]
-------------------------
[a]; if [a] then [b] else [c]; [rest]

not true; [a]
-------------
false; [a]

not false; [a]
-------------
true; [a]

not [a]; [b]
-------------
[a]; not [a]; [b]

true; [a]
-------------
[a]

false; [a]
-------------
[a]

[a] is a value
--------------
[a]: [rest]
--------------
[rest]

nil is a value
cons is a value

let [a] = [b] in [c]
--------------------
<foo [a] [b]>  [c]

<foo [a] [b]>  var [a]
----------------------
[b]

----------------------
primitive printLine [msg]

emit [a]; [rest]
------------
[rest]; [a]

if (not (not false)) then 1 else 2
not (not false); if (not (not (false))) then 1 else 2
not false; not (not false); if (not (not (false))) then 1 else 2
true; not true; if (not true) then 1 else 2
not true; if (not true) then 1 else 2
false; if false then 1 else 2
if false then 1 else 2
2