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Part VI: Technology Index

Purpose: Cross-reference by tool family. Which characters appear in which technological contexts. What operations each craft discovered. How to read each tool's documentation.

Thesis: The DDJ is a navigation system. Each craft has its entry point into the same geometry.


How to Use This Index

  1. Find your craft/technology below
  2. Note the key chapters and radical family
  3. Cross-reference with Parts I-V of the lexicon
  4. Connect text principles to your existing practice knowledge

The Technologies

1. Weaving (糸 Family)

Core principle: Perpendicularity creates stable fabric. Dimensions require continuous threading.

Key Term Character What It Encodes
Warp Vertical invariant (= 常)
Weft Horizontal variable (= 可)
Weave Integration at perpendicular intersection
Maintain/Dimension Continuous re-threading
Knot P-position where flow becomes place

Entry chapters: 25 (recursion cycle), 52 (母/子 relationship)

What the loom teaches: - Warp must be established before weft can operate - Fabric exists only at perpendicular crossing - Shuttle must arc (not push) through warp - 2π closure with every pass

Readable on the tool: Weave pattern, thread density, warp/weft ratio


2. Metallurgy (金 Family)

Core principle: Phase transformation through rate control. Property distribution across gradients.

Key Term Character What It Encodes
Smelt/Refine Fire + select = separation
Cast Metal + duration = permanent form
Forge Metal + segment = iterative shaping
Quench Water + sudden = state lock
Steel Metal + ridge = 剛 at right scale

Entry chapters: 76 (剛/柔 distribution), 40 (反 as oscillation)

What the forge teaches: - Same boundary crossed at different rates → different results - Pure 剛 shatters, pure 柔 useless, gradient succeeds - The clay shapes how the operator applies - You can't force the hamon

Readable on the tool: Hamon, temper color, grain structure, edge geometry


3. Archery (弓 Family)

Core principle: Stored potential releases through center. Flexibility enables power.

Key Term Character What It Encodes
Bow The curve that stores
Weak/Flexible Double bow = maintained potential
Taut Bow + long = extended tension
Relax Bow + also = released tension
Mysterious Bowstring across void

Entry chapters: 40 (弱者道之用), 77 (天之道 = bow)

What the bow teaches: - The string bridges the void without occupying it - Power comes from stored curvature, not linear force - Release happens through the center - 玄 = the operational paradox of connected-not-touching

Readable on the tool: Recurve profile, string tension, nock position, limb flex pattern


4. Hydraulics (氵 Family)

Core principle: Water finds the path without forcing. 無為 in physical form.

Key Term Character What It Encodes
Govern/Channel Water + platform = channeling
Flow Water in continuous motion
Deep Vertical extent in fluid
Clear Transparent medium
Converge Water + center = concentrated flow

Entry chapters: 8 (water as demonstration), 78 (water overcomes stone)

What water teaches: - Path of least resistance, not no-path - Goes around obstacles without force - Settles at lowest point (不爭) - Clarity comes from stillness

Readable on the tool: Channel gradients, valve positions, flow rates, sediment patterns


5. Agriculture (禾 Family)

Core principle: Harvest timing through π-operation. Cyclical completion.

Key Term Character What It Encodes
Harvest-capacity Grain + blade = scythe arc
Harmony Grain + mouth = proper distribution
Autumn/Completion Grain + fire = harvest time
Plant Grain + heavy = seed placement
Ripe Fire applied until done

Entry chapters: 11 (有/無 relationship), 22 (曲則全)

What the field teaches: - Scythe arcs, doesn't push (π-operation) - Timing matters—too early fails, too late fails - You can't force ripeness - The field wins against linear effort

Readable on the tool: Scythe curve, sickle angle, seed drill spacing, harvest timing markers


6. Ceramics (土 Family)

Core principle: Void is function. Form enables emptiness.

Key Term Character What It Encodes
Vessel Four openings guarding emptiness
Earth/Ground Substrate that receives
Knead Earth + extend = introducing void
Clay Earth + straight = malleable
Kiln Cave + fire = transformation chamber

Entry chapters: 11 (wheel, pot, room), 28 (樸)

What ceramics teaches: - You use the emptiness, not the clay - Constraint (walls) enables function (holding) - Fire transforms substrate permanently - Firing timing determines result

Readable on the tool: Wall thickness, rim profile, glaze pattern, firing color


7. Carpentry (木 Family)

Core principle: Root/tip relationship. Uncarved contains all carvings.

Key Term Character What It Encodes
Root/Base Wood + line below = fundamental
Tip/End Wood + line above = derivative
Uncarved block Wood + simple = undifferentiated potential
Structure Wood + framework = assembly
Material Wood + talent = usable substance

Entry chapters: 28 (知其白守其黑), 32 (道常無名樸), 37 (樸)

What wood teaches: - Work with the grain, not against - Every carved form reduces possibility - Root supports tip (本/末 ordering) - Flexibility prevents breaking

Readable on the tool: Grain orientation, joint type, surface finish, wood selection


8. Optics (勺 Family)

Core principle: Curvature creates focus. Distributed field concentrates to point.

Key Term Character What It Encodes
Target/Focus Brightness + concave = focal point
Burn Fire + concave = concentrated heat
Pour/Consider Wine + concave = focused flow
Fishhook Metal + concave = curved to catch
Leopard Beast + concave = focused attention

Entry chapters: (No direct chapter—technology discovered between characters)

What the mirror teaches: - G→P transformation through curvature - Focus is geometric, not intentional - Shape determines concentration - Purpose (目的) is optical, not abstract

Readable on the tool: Curvature radius, focal length, surface polish, reflection pattern


9. Cooking (火 Family)

Core principle: Transformation through heat. Timing determines outcome.

Key Term Character What It Encodes
Cook/Mature Fire applied until done
Steam Grass + fire + elevated = vapor rising
Roast Fire + consider = attention to heat
Boil Water + emerging = phase transition
Simmer Fire + village = slow sustained heat

Entry chapters: 60 (治大國若烹小鮮 - governing like cooking small fish)

What cooking teaches: - Heat transforms irreversibly (some processes) - Rate of heating matters (煮 vs 炸) - You can't un-cook something - Small fish fall apart if disturbed too much

Readable on the tool: Char patterns, reduction marks, equipment wear, timing indicators


10. Navigation (舟 Family)

Core principle: Float with conditions. Read currents, don't fight them.

Key Term Character What It Encodes
Boat The floating platform
Navigation Boat + direction = directed floating
Ferry Water + degree = crossing
Helm Boat + it/extension = steering
Anchor Metal + seedling = planted stability

Entry chapters: 80 (有舟輿無所乘之 - boats exist but no need to ride)

What boats teach: - You float or you sink (binary threshold) - Work with currents, not against - Small adjustments, large effects - The water does the carrying

Readable on the tool: Hull shape, keel depth, sail configuration, rudder size


Cross-Technology Patterns

The Same Principle in Different Substrates

Principle Weaving Metal Water Wood
Perpendicularity Warp⊥Weft Edge⊥Force Flow⊥Bank Grain⊥Cut
Rate matters Shuttle speed Quench speed Flow rate Drying rate
剛/柔 gradient Tight/loose weave Edge/spine Channel/flood Heartwood/sap
無為 Let shuttle pass Let water quench Let flow find Let wood dry

Universal Failure Modes

Every technology fails the same two ways:

Failure What It Looks Like
Pure 剛 Brittle blade, rigid teaching, forced growth
Pure 柔 Shapeless clay, formless instruction, unstructured space

The solution is never "choose one." The solution is always "correct distribution."


Reading Your Tools

Every handmade tool carries documentation on its surface:

What to Look For What It Tells You
Wear patterns How it was used
Repair history What stressed it
Material choice What was available/valued
Proportions What trade-offs were made
Finish quality How much attention was given

Mass production broke this. A handmade tool teaches you how to use it. A mass-produced tool requires a manual.


The Navigation Principle

The DDJ is not a book to read linearly. It's an index.

If you work with X substrate, start with Y chapter.

The text points to where the knowledge lives—in the technologies themselves. The characters encode what the tools already knew.

Your craft is your entry point. The geometry is the same throughout.


Document created: 2025-11-27 Part VI of Structural Lexicon Dao De Jing structural translation project