Settings

Both settings are stored in this browser’s local storage, next to your progress, and stay on this device.

Comfort level

Applies to the Engineering lessons. It changes what the lesson suggests around the content, never the content itself. Less comfortable lists the sections a lesson builds on at its top, and puts new review items in your next session. More comfortable shows the extensions at the end of a lesson, and starts new review items at stage 2. Click the chosen level again to unset it.

less comfortablemore comfortable

Review schedule

Every checkpoint of a lesson you finished comes back for review at growing intervals: 1, 3, 7, 21, then 60 days. A pass moves an item up a stage; a fail drops it to stage 1. Nudge an item here if that pace is wrong for you.