Behavior snapshots ≠ decision systems: why most “brain→behavior” profiles stall at now what? (and what my PRISM fixes)
A lot of popular profiles map observable behavior (sometimes with neuro-flavored marketing), but don’t model a person’s core identity or valued preferences—so they can’t reliably tell you what to do next. I’m building PRISM: a Socionics-rooted, trait-plus-state model with a stable identity layer and a small set of state modes that explain when/why you “look like” other styles. The goal is decision support, not just descriptions. Would love critical feedback on the psychometrics. The critique (aimed at behavior-snapshot systems) 1. No latent identity. They treat today’s expression as the ground truth. That’s volatile and context-dependent. 2. No value function. Without modeling what the person cares about, you can’t rank choices; advice stays generic. 3. No state mechanics. Stress/time pressure/social demand change expression, but most tools don’t model the how/why—they just describe it after the fact. 4. Result: great language, weak decision utility. You get “you’re high in X today,” but not a policy for what to do in this situation. ⸻ What PRISM does differently (system design, not hype) • Identity (stable): 8 continuous function traits (Te, Ti, Fe, Fi, Se, Si, Ne, Ni) + valued preferences (which pairs you elevate under choice/pressure). • State (situational): 3–4 compact modes (e.g., arousal × orientation) that apply gain patterns to the identity vector—predicting how expression shifts. • Lookalikes (derived, not reassigned): In certain modes, your expression may sit closer to another type centroid (e.g., an LIE presenting ILI-ish in a low-arousal, abstract mode). That’s shown as proximity, never as a new identity. Decision grammar (what users actually get): \pi(I, V, M, X) \rightarrow \text{policy} Where I = identity (traits), V = valued preferences, M = current mode, X = context (stakes, audience, time horizon). Output = ordered moves, guardrails, and a 2–3 step reset for that situation. Example: • Mode: high-arousal × relational → boost Fe/Ne; Do: socialize the “why”, offer two options, close fast. Don’t: Ti rabbit holes. Reset: brief Si grounding (timebox + environment tweak).