entity_id,period_id,confidence,rationale,source_id,review_status ENT_VF_DMT_MACHINE_ELVES,PER_MODERN_FOLKLORE,high,"The 'self-transforming machine elves' (Terence McKenna) / autonomous entities reported by DMT users. People ritually occasion the encounter (set, setting, ceremony) and act on the perceived contact as relational/communicative; Strassman's clinical study and the Davis/Griffiths survey document the recurrent, agentic experience.",SRC_STRASSMAN_DMT,reviewed