Two lectures, because a lecture is for stating the claim and deriving the model once — everything after that is a room with spreadsheets open.
This course teaches in sessions, with a spreadsheet open. A lecture exists only for the two things a spreadsheet can’t do: state the claim, and derive the counter model once on a board where everyone watches the same term move.
That’s lecture 1 and lecture 2. After lecture 2 the room has spreadsheets open and stays that way for ten weeks.
What a battle system is
The first of the course's two lectures — why a battle system is readable at all, and what the other eleven weeks do with that
Week 1 · 22 February 2027
Counters, ticks and the cost of an action
The second and last lecture — Final Fantasy X's counter model worked through on the board, because it's the one piece of arithmetic worth doing together
Week 2 · 1 March 2027