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Most questions are about locks, limits and streaks. Those are answered below. Anything else, a human will pick it up.
Fastest for anything about a specific problem. Median first reply is under 20 minutes.
open_discussFor enrolled cohorts: your instructor can see your progress and unblock you directly.
message_instructorTracks unlock on prerequisites, not on your total. Every prerequisite track has to be at 80% or better, because the later track assumes you can already write the earlier patterns without looking them up. The lock is showing you the shortest path, not withholding content.
Running a cohort? The instructor console covers assignments, grading, at-risk flags and integrity review.
open_instructor_console