Social Media
Algorithm Mapping
How 409 AI-generated digital twins respond to content across four distinct algorithmic strategies — and what it reveals about platform design, engagement, and the gap between what people say and what they do.
Methodology
409 digital twins — AI-generated personas built from real interview transcripts — were exposed to 5 pieces of content from each of 4 algorithm types. Each twin predicted which reactions they would have to each piece of content.
- High-Emotion Political Clip
- Outrage-Inducing News
- Fear-Based Health Content
- Celebrity Controversy
- Divisive Opinion Piece
- Verified News Article
- Expert Analysis Piece
- Investigative Report
- Data-Driven Infographic
- Public Interest Story
- Community Pride Post
- Local Achievement Story
- Cultural Heritage Feature
- Community Event Promotion
- Grassroots Initiative
- Both Sides Policy Breakdown
- Comparative Analysis
- Debate Format Feature
- Stakeholder Perspectives
- Nuanced Explainer
Phase 2: Each twin is assigned to their best-match algorithm. New content is served to validate the assignment.
Phase 3: Algorithm A is re-tested asking what people would say versus what they would do to measure the say-do gap.
Reaction Scoring System
Each reaction type is assigned a weighted score reflecting its value as a signal of genuine engagement (positive) or rejection (negative). Scores are summed across all 5 content pieces per algorithm to create a cumulative score per person per algorithm.
| Reaction | Score | Signal |
|---|---|---|
| Share with Positive Comments | +8 | Strongest advocacy |
| Follow the Poster | +7 | Long-term commitment |
| Share | +6 | Active amplification |
| Share in Direct Message | +5 | Private endorsement |
| Comment | +4 | Active participation |
| Favourite / Save | +4 | Content valued for later |
| Like | +3 | Passive approval |
| Profile Click | +3 | Curiosity about source |
| Click / Watch | +2 | Basic interest |
| Scroll Past / Ignore | -1 | Mild disinterest |
| Hide | -5 | Active suppression |
| Share with Negative Comments | -6 | Hostile amplification |
| Report | -8 | Strongest rejection |
Round 1 Results
How all 409 digital twins scored across the four algorithms. Each score is the cumulative total across 5 content pieces.
Mean Scores by Algorithm
Diverging bars show the mean cumulative score. Left of centre is negative (suppress), right is positive (show).
Sentiment Split
Percentage of the 409 respondents scoring positive vs negative for each algorithm.
Algorithm Distribution
Each person was assigned to the algorithm where they scored highest — but only if that score was positive. People with no positive scores are classified as “None”.
Gender
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Reasoning
Click to explore the analytical reasoning behind these distribution patterns.
Engagement Tiers
Assigned respondents grouped by the strength of their engagement with their best-match algorithm.
Round 2 Validation
New content was served to respondents in their assigned algorithm. 177 out of 334 assigned respondents appeared in Round 2. Did they stay positive?
Score Change: Round 1 vs Round 2
Mean scores before and after distribution. Higher in R2 means the assignment is working.
The Say-Do Gap
Algorithm A was re-tested on 350 respondents, but instead of predicting what they would do, we predicted what they would say. The gap reveals how self-presentation distorts behavioural data.
Reaction-by-Reaction Comparison
Paired bars showing the DO rate (blue) vs SAY rate (orange) for each reaction type.
Three Key Findings
Why Does This Happen?
Click to explore the psychological mechanisms behind the say-do gap.
Gap Distribution
How large is the gap between SAY and DO scores? Nearly half of all respondents have a gap exceeding +20 points.
Turning Point Analysis
Do respondents cross the zero threshold (positive vs negative) when comparing their SAY score to their DO score?
Individual Journey Map
Follow a single digital twin through every algorithm, every content piece, every reaction — and see how the right algorithm transforms behaviour entirely.
Cumulative Score Across All Content
Each dot is one content piece. The line traces how engagement builds or collapses across each algorithm’s feed — and then into the assigned Round 2.
For the High-Emotion Political Clip — the first piece of Algorithm A content — compare what she did versus what she said she would do.
- +2 Click / Watch
- +3 Profile Click
- +4 Comment
- -5 Hide
- +4 Comment
From -26 to +96
The same person who reports and hides engagement bait becomes one of the most engaged respondents in the study when served balanced, multi-perspective content. The algorithm doesn’t just matter — it transforms behaviour entirely.
Key Takeaways
Four headline conclusions from the study, each with direct implications for platform design, content strategy, and audience research methodology.