diff --git a/_subsections/lesson-03.org b/_subsections/lesson-03.org
index 094fcb1..e260eb5 100644
--- a/_subsections/lesson-03.org
+++ b/_subsections/lesson-03.org
@@ -10,7 +10,7 @@
 - [[https://www.youtube.com/playlist?list=PLyzOVJj3bHQuloKGG59rS43e29ro7I57J][Playlist: Missing Semester]]
 - [[https://missing.csail.mit.edu/2020/editors/][class notes]]
 
-- Curr: https://youtu.be/a6Q8Na575qc?si=p3AFH1zvGbeCxEvF&t=36
+- Curr: https://youtu.be/a6Q8Na575qc?si=IR9jEpmHq7_03nMT&t=1548
 
 
 *** timestamps
@@ -23,7 +23,8 @@
 + [[https://youtu.be/a6Q8Na575qc?si=qzD5HiycrEhplKeQ&t=285][04:45 - modal editor]]
 + [[https://youtu.be/a6Q8Na575qc?si=ra-MbPQpbKzAcJnP&t=571][09:30 - opening vim]]
 + [[https://youtu.be/a6Q8Na575qc?si=OyhOfX2ft9w7O9kM&t=1020][17:00 - buffers vs windows]]
-+ [[https://youtu.be/a6Q8Na575qc?si=gaek6N0DJo57AwKn&t=1407][23:25 - movement keys]]
++ [[https://youtu.be/a6Q8Na575qc?si=gyYNZk4_XiXVk_4a&t=1217][20:17 - movement keys]]
++ [[https://youtu.be/a6Q8Na575qc?si=QysgH5bMEG0bigKq&t=1530][25:30 - editing commands]] *current*
 + [[https://youtu.be/a6Q8Na575qc?si=_gbAQlOZ_irCdHt6&t=1797][29:54 - questions]]
 + [[https://youtu.be/a6Q8Na575qc?si=4VwNEC040Jna5znz&t=2254][37:33 - demo]]
 + [[https://youtu.be/a6Q8Na575qc?si=0qDOcyT0WX1U4RXB&t=2682][44:42 - vim configuration]]
@@ -53,3 +54,39 @@
 - entered via ':'
 
 ** buffers vs windows
+- vim maintains a set of open buffers
+  - any buffer can be open in 0 or more windows at any time
+- you can have tabs, and tabs can contain windows
+
+*** quiting
+- :q only closes the current WINDOW, not buffer
+  - :q exits when there are no more windows open
+  - :qa is "quit all" and closes all windows
+
+** movement
+- hjkl
+- w/b  forward and backward by one word
+- e end of word
+- 0/$ beginning and end of line
+- ^ first non empty character on a line
+
+*** scrolling up and down
+- C+U move up
+- C+D move down
+
+*** move by buffer
+- G moves to end of buffer
+- gg move to top of buffer
+
+*** move by screen
+- L moves to lowest line on screen
+- M moves to middle line on screen
+- H moves to the highest on screen
+
+*** move by find
+- f <letter> will move to the first letter forward
+- F <letter> backwards
+- t <letter> moves to just before the letter
+- T <letter> moves backwards to in front of the letter
+
+** editing commands