Interactives

Explorable versions of the course’s hardest ideas. Everything runs in your browser — no installs, no server.

Explorable	Idea it teaches	Session	Status
Kalman filter playground	Signal vs. noise, the gain as attention, the ragged edge	1	live
STL decomposition explorer	What “seasonally adjusted” actually does	3	in development
MIDAS weight visualizer	How lag polynomials weight high-frequency data	6	in development