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Publish the Obsidian vault's Knowledge folder as /knowledge (881 notes, 67 folders), with a Knowledge item in the nav and footer. - scripts/import_knowledge.py regenerates data/knowledge from the vault: slugged paths, folder notes as index pages, wikilinks resolved to site links (or plain text), callouts, highlights, and Dataview tables rendered statically. Personal notes are withheld via an exclusion list plus a privacy guard. - tuftecms/core/knowledge.py builds a concept index from note titles and aliases. First mentions on ordinary pages link to their Knowledge note (capped, never in headings, code, links, or sidenotes); Knowledge pages list related notes and where they're mentioned across the site; other pages get a Related Knowledge block. - Knowledge URLs join sitemap.xml (so the sweep test covers them), never displace existing legacy slugs, list alphabetically, and mermaid diagrams render client-side only on pages that have them.
39 lines
3.1 KiB
Markdown
39 lines
3.1 KiB
Markdown
---
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description: You can explain everything the brain does and still not touch why any
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of it is felt.
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source: obsidian-knowledge
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---
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# Hard Problem of Consciousness
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> *You can explain everything the brain does and still not touch why any of it is felt.*
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---
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## Overview
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The **hard problem of consciousness**, named by philosopher **David Chalmers** in 1995, asks why there is *something it is like* to be a conscious system at all. Most questions about the mind, he argued, are tractable in principle. The genuinely hard one resists every functional account we can imagine — and it sits at the center of whether a machine that acts conscious actually is.
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## The Easy Problems
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Chalmers split the field. The **easy problems** are the functions and behaviors: how the brain discriminates stimuli, integrates information, reports its own states, focuses attention, controls action. "Easy" is relative — these are decades of hard science — but they share a shape. Each asks how a mechanism performs a job, and a mechanistic story counts as an answer. Specify the right information-processing and the function is explained.
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## The Hard Problem
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The **hard problem** is different in kind. Why is all that processing accompanied by **subjective experience** — by *qualia*, the redness of red, the sting of pain, the felt texture of a thought? You could fully describe the neural machinery of color vision and still face an untouched question: why is any of it *experienced* rather than running silently in the dark? This is the **explanatory gap** — the persistent sense that no amount of functional or structural detail logically entails felt experience.
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## Zombies and the Gap
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Chalmers sharpened this with the **philosophical zombie**: a being molecule-for-molecule identical to you, behaving identically, reporting pain and savoring wine — yet with no inner experience whatsoever, all dark inside. If such a creature is even *conceivable* without contradiction, then experience is not logically fixed by physical function. Function and feeling come apart. No third-person account, however complete, seems to *entail* the first-person fact of there being someone home.
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This is the crux for **artificial minds**. An AI can pass every behavioral test, narrate its inner life, insist it suffers — and the hard problem says none of that settles whether anything is felt. Behavior is the easy problem; the lights being on is the hard one. It is exactly why an entity can be conscious-as-if without our being able to confirm conscious-in-fact.
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## Related
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- [Consciousness](/knowledge/ai/consciousness) — the broader phenomenon this problem isolates
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- [Philosophy of Mind](/knowledge/philosophy/philosophy-of-mind) — the field where the debate lives
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- [Panpsychism](/knowledge/philosophy/panpsychism) — one response: experience is fundamental, not derived
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- [Integrated Information Theory](/knowledge/philosophy/integrated-information-theory) — a quantitative bid to bridge the gap
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- [AI Research](/knowledge/ai/ai-research) — where the question becomes lived, not academic
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- Philosophy — domain index
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