The evidence

The problem.

What the external research shows about engagement-optimised AI. Presented as evidence of the problem, not as proof of our solution, with correlational findings flagged as such.

The problem, the evidence

The dominant model may worsen what it claims to solve.

These are external findings, presented as evidence of the problem, not as proof of our solution. Where research is correlational, we say so.

Lead finding · peer-reviewed, longitudinal

Across 12 months, increased social chatbot use predicted increased loneliness.

A 2026 longitudinal study followed more than 2,000 adults across four Western countries for a year. Being lonely drove people toward chatbots, and that use appeared to deepen loneliness over time.

The authors themselves urge caution, describing these analyses as exploratory. We present this as strong evidence, not proof.
Folk & Dunn, University of British Columbia. Psychological Science, 2026. doi.org/10.1177/09567976261427747

month 0month 12loneliness →

Illustrative of the reported direction of association, not plotted study data.

The category is enormous, and accelerating.

$0B

Estimated global AI-companion market in 2025.

industry estimate Market-research aggregation, 2025.

$0B+

Projected market size by 2035.

industry projection Market-research aggregation.

0%

Growth in AI-companion app usage, 2022 to mid-2025.

press estimate TechCrunch.

0M

Monthly users of Character.AI, over half of them under 24.

reported Company / press reporting.

People already turn to AI for connection.

0.0%

Of adults with a mental-health condition who used an LLM in the past year, used it for mental-health support.

survey Published survey, reported figure.

Therapy and companionship are now among the most common reasons people use generative AI at all.

Harvard Business Review analysis of generative-AI use, 2025.

Experts are warning about engagement-optimised design.

AI wellness apps can foster extreme emotional attachments and dependencies.
Editorial, Nature Machine Intelligence.
AI is designed by profit-generating firms to optimise the user's behavioural, cognitive, and emotional engagement. AI has no morals to direct its development or actions.
Canadian Psychological Association, 2024 briefing.

Additional citations will be added here as they are verified. Every figure on this page is meant to be traceable to its source.