diff --git a/TODO.txt b/TODO.txt
index 6777221..c0f0b21 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -1,6 +1,10 @@
 Make the panning match the cursor
 Allow zooming with scroll wheel
-Dynamically set a minimum zoom that will keep the edges of the sphere from showing
+Enforce a minimum zoom that will keep the edges of the sphere from showing
+	This probably just needs simple math with the aspect and/or the viewport's diagonal length.
+Choose a pleasant initial zoom
+Add data- attribute for minimum zoom
+Add data- attribute for starting angle
 Automatically create canvas for each marked <img> once it loads, and display:none the <img>
 Add a class to the <canvas> for styling
 Copy matrix funcs into code
@@ -10,3 +14,4 @@ Fix up code locality
 Give the uniforms simpler names
 Delete the defunct view matrix
 Rename the model matrix as the view matrix, because that's really what it is.
+Consider better names for the angle variables