MediumData

1M users drop off at 6 months

Asked at

Netflix

1Give yourself 5 minutes

2Answer out loud, not in your head

3Then compare with the answer below

Reference answer

Hypothesis space: (1) user-mix drift (new cohorts are different), (2) experiential decay (the novelty fades), (3) hard friction at the 6-month mark (e.g. renewal/billing/algorithm getting noisier), (4) external (competitor ads). Triangulate via cohort breakdown, monthly subscription-elasticity curve, feature-use heatmap, and a counterfactual holdout where you intervene with a 6-month nudge. Pick a low-cost experiment: send a re-engagement nudge to a 5% slice; measure 30-day retention delta.

Then expect these follow-ups

What would you measure for retention re-engagement?

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