diff --git a/todo.txt b/todo.txt
index 8d1a2964b1..9447447a50 100644
--- a/todo.txt
+++ b/todo.txt
@@ -12,12 +12,23 @@ Errors:
 - Incorrect number of parameters
 
 Symbol Resolution:
+- Add all files with annotated class/functions.
 - Find class references, load them all in TopLevelContext.
-- Find unbounded identifiers/functions in functions.
-- `inspect.getmodule(x)` every unknown `x` if not primitive/list of primitives,
-  check their files recursively by getting their file path, cache with
-  (normalized) path as key.
+- Find unbounded identifiers in the functions.
+    - If it is a function/class name, record its object ID.
+    - Otherwise, load its value. (check to see if specified with `global`)
+      (Function implemented in python, with rust binding to add value to global
+       variable dictionary)
+
+Global variable dictionary:
+- Primitives, including integers, floats, bools, etc.
+- Primitive lists.
+- Numpy multi-dimensional array, with value + dimension vectors.
+- Reference array, with integer index referring to other things.
+- Symbol table: python id -> reference id.
 
 TopLevelContext/InferenceContext:
 - Restrict visibility by user defined function.
 
+
+