What the term captures here In this channel's material, external processors (外部处理器) refers to AI tools — most concretely ChatGPT Voice — that a writer treats as thinking and drafting partners outside their own head. Instead of producing finished prose on command, the processor participates in the writing flow itself: research, drafting, metaphor-building, and editing all happen in one continuous exchange with the tool. How it shows up in the evidence The live writing session in the assigned video demonstrates this usage in action. The writer broadcasts roughly two hours of drafting a long-form piece about Codex history, using a voice-based AI assistant throughout. The session shows that the processor is external in a specific sense: the writer keeps their own voice and editorial judgment while the AI handles auxiliary cognitive work along the way — surfacing background material, testing metaphors, and helping reshape sentences mid-stream. Why the framing matters Treating AI as an external processor — rather than an autopilot — is the throughline of the channel's Writing with AI topic. The writers profiled there engineer a system around the tool, set guardrails, and articulate their own taste, so the output stays publishable and still theirs. The term marks that division of labor: the writer owns meaning and judgment; the processor extends thinking capacity outside the writer's own head. - External processors are AI tools used as thinking partners, not one-shot text generators.- In the live session, research, drafting, metaphor-building, and editing flowed through a voice AI in a single stream.- The writer retains voice and editorial judgment while the AI extends cognitive capacity outside the head.