Residual-stream ontologizer clusters 1,711 EA Global attendees into 48 types

amplifiedamp · x · 2026-10-25

To decide whom to prioritize at EA Global, amplifiedamp of WakaruLabs built a color-coded "ontologizer" using residual stream activations from Trinity Large TrueBase 400B (layer 59) plus their own library, clustering all 1,711 NYC attendee profiles.

The resulting tree maps 48 attendee archetypes (8 heads × 6 entries), each auto-described by Claude 3 Opus — from AI safety practitioners and policy translators to animal-welfare technologists and career-switching students — with methodology details (logistic fit + k-means, holdout R², noise cutoff r<0.05) annotated.

Related event: Developer Clusters 1,711 EA Global Attendees Using Model Residual Streams(2 posts)→

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