TARS SI Traceable Applicability Reasoning System

Honesty is enforced by code: the verdicts and every number come from the engine.

Ask me about PYRION, fire safety in space, cabin atmospheres, NASA's combustion data or this site. Answers carry three labelled layers: what the engine computed, what NASA said (quoted and checked), and my own reasoning, labelled as not verified against a source.

No account. Your conversations stay in this browser. An anonymous device id (a random number) is used only for fair rate limits.

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Every page, button and number explained. Loading the topics… Press the ? menu, then Help mode, to point at anything.

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