Edge Discovery

Arccos Edge · product marketing ·

Which surfaces to push, which are failing, and who to talk to

Built on users and 54 days of behaviour — including the seven weeks Snowplow dropped, recovered from Statsig. Rates are measured over a trailing 28-day window ().

Reading the denominator. Eligible counts only users who could plausibly reach a surface — Course Insights is measured against people who opened a course page, not all 106k. It is the honest basis for sizing opportunity. All users is comparable across surfaces but overstates the addressable pool for anything niche. Toggle top-right; it recomputes the KPIs, Portfolio, Ladder and Opportunity views. Evolution, Habit and Journeys are denominator-free (daily series, per-cohort rates and rule-based audiences) and do not change.

1 · Surface portfolio

Where should marketing spend attention? Bubble size is the addressable population; colour is the four-week trend in reach rate. The prize quadrant is low reach, high stickiness — proven value that not enough people have found.

reach rising over 4wk softening (0 to −25%) falling (beyond −25%)

Vertical axis is Sticky28 — of people whose first action was ≥28 days ago, the share who came back and acted in at least two separate weeks. Surfaces with fewer than 100 mature first-actors are not plotted. Exact values for every bubble are in the Opportunity table below.

2 · Evolution

Is the problem distribution or persuasion? Blue is daily users reached, orange is users who acted, both 7-day rolling. Falling reach with steady conversion is a navigation problem; steady reach with falling conversion is a positioning problem.

Full history, 4 Jun – 27 Jul. Player Home is a lower bound before 23 Jul: Statsig captures ~78% of its entry impressions. The bias is constant, so the shape holds.

3 · Discovery ladder

Exactly where each surface loses people. A fat grey band is a discovery problem that email can fix. A fat blue band means they saw it and passed — that is copy, CTA or latency, and more awareness will not help.

never reached reached, no action acted

4 · Habit and abandonment

Which surfaces earn a second visit? Weekly retention after a user's first deliberate action. High conversion with low retention means a good demo attached to a weak ongoing job — promote it at the right moment, not as a habit.

W1–W4 = share of the same mature cohort (first act ≥28 days before the window end) who acted again in each subsequent week — one denominator for all four points, so the decline is behaviour, not cohort mix. n is that cohort. Cohorts under 100 are suppressed rather than shown noisily.

5 · Opportunity rank

Where would better discovery create the most additional actors? Components are shown so the ranking can be audited rather than trusted blindly.

Score = 100 · addressable.35 · conversion.35 · headroom.20 · decline.10, each a percentile rank, geometrically combined so raw volume cannot dominate. Conversion is empirical-Bayes shrunk. Potential actors asks: if marketing reached 10% of who is left, how many would act?

6 · Journey audiences

Who exists to talk to today. Audiences are priority-exclusive top to bottom — a user counts in the first journey that claims them, so the sizes can be summed and Braze cannot double-send. Audience lists live in Snowflake for Braze to pull — this page carries counts only.