Echo Chamber Simulator

Watch how information filtering reshapes an ecosystem in real-time. Each dot is an information source. Color = perspective. Size = reach. Crank up the filter strength and watch diversity collapse.

Source Diversity

Controls

Filter Strength 0%

Popularity Bias 30%

Source Count 200

Clustering Force 20%

Ecosystem Health

1.00

Shannon Diversity

200

Active Sources

Perspectives

0.14

HHI (Concentration)

How it works: Each dot represents an information source with a perspective (color) and reach (size). Filter Strength simulates AI curation — higher values suppress low-reach, non-mainstream sources. Popularity Bias makes big sources grow bigger (rich-get-richer). Clustering pulls similar perspectives together. Watch the Shannon Diversity index and HHI to track ecosystem health.

Inspired by: "The Rise of AI Search" (Aral et al., 2026) — found AI search surfaces fewer long-tail sources and lower response variety vs traditional search.