Appendix E — Master Timeline & Dependency Table

Part 1: all 47 chapters mapped to historical era, difficulty, prerequisites, and unlocks. Part 2: a realistic compressed rebuild schedule for a determined civilization that possesses this book.

E.1 Chapter Dependency Table

Ch	Title (short)	Historical development band	Difficulty	Requires	Unlocks
1	Fire	~400 kya	low	—	2, 5, heat everywhere
2	Toolkit	paleolithic	mid	1	3, 4, 6
3	Cordage/textiles	upper paleolithic	low	2	4, 6, 8, belts/sails
4	Food acquisition/preservation	mesolithic	low–mid	2, 3	surplus → 7, 9
5	Pottery	~20 kya	low–mid	1	storage → 7, crucibles → 10/14
6	Shelter/settlement	neolithic	low–mid	2, 3, 5	granaries, villages
7	Agriculture	~10 kya	mid	1, 5, 6	population engine
8	Animals/draft	~12 kya	mid	3, 4, 7	traction, manure loop
9	Trade/money	bronze age	low–mid	7, 8	specialization at scale
10	Copper/bronze	~5000 BCE	mid	1, 5, 13	furnace skills
11	Writing	~3200 BCE	low–mid	9	administration, 12, 18
12	Math	3000 BCE–900 CE	mid	11	engineering cognition
13	Mining	~4000 BCE	mid	1, 2	ore/salt/coal security
14	Iron/steel craft	~1200 BCE	mid–high	10, 13, 16	tool abundance
15	Mechanisms/lathe	ancient→1800	mid	12, 14	machine culture
16	Mills	~300 BCE–1200 CE	mid	15	proto-industry power
17	Craft chemistry	ancient→1600s	mid	5, 13	glass/lime/soap/distill
18	Printing	1450s	mid	11, 15, 16	knowledge cost collapse
19	Optics	1280→1670s	mid	17, 15	astronomy/microscopy
20	Instruments/method	1600→1900	mid–high	15, 19	science engine
21	Powder/acids	850→1860s	mid–high	13, 17	mining + heavy chemicals
22	Coke iron	1709→1850s	mid–high	14, 13, 16	cheap metal era
23	Steam engines	1698→1900s	high	22, 15, 20	power anywhere
24	Canals/roads/rails	ancient→1900	mid	23, 22, 9	national markets
25	Electricity I	1745→1866	mid–high	20, 17	electromagnetism mastery
26	Electricity II/grids	1866→1900	high	25, 23, 22	universal power socket
27	Steel/concrete	1856→1950s	high	22, 21, 20	structural abundance
28	Petroleum	1859→1940s	high	13, 21, 23	transport fuels
29	ICE/vehicles	1876→1950s	high	28, 27, 15	mobility revolution
30	Sanitation/germs	1847→1920s	mid	19, 17, 20	survivable cities
31	Clinical medicine	1846→1960s	high	30, 21, 28	individual survival tech
32	Green Revolution	1909→1970s	high	21, 29, 30	nitrogen wall broken
33	Flight	1853→1960s	extreme	29, 27, 38	air transport/aerospace path
34	Vacuum-tube electronics	1887→1950s	high	25, 26, 17	signal shaping concepts
35	Transistors/ICs	1947→1971+	extreme	34, 20	computation collapse
36	Computers/software	1854→1980s	extreme	35	thought automation
37	Fission	1896→1980s	extreme	20, 27, 13	dense power/isotopes
38	Polymers/composites	1839→present	high	28, 21	materials catalog
39	Rocketry/orbit	1926→present	extreme	27, 29, 36, 38	space access
40	Satellites	1957→present	extreme	39, 34, 35	planetary nervous system
41	Fiber optics	1966→present	high	17, 34, 35	bandwidth civilization
42	Internet/cloud	1969→present	extreme	36, 41	real-time coordination
43	Energy portfolio	1954→present	high	26, 35, 37	abundance pricing
44	Biotech	1865→present	extreme	30, 31, 35	read-write genome
45	Robotics	1788→present	high	15, 35, 36	labor automation
46	Machine intelligence	1958→present	extreme	35, 42, 43	cognition infrastructure
47	Institutions	1300→present	high	9, 11, 12	scale itself
49	Gunpowder weapons	10th c. China→20th c.	mid–high	21, 14/27, 15	industrial war; armory precision
50	Naval power	Salamis→present	high	3, 17/21, 23/24, 34/35	global projection
51	Industrial war/org tech	1590s drill→present	high	9, 11/47, 24, 49	modern state capacity itself

E.2 Compressed Rebuild Schedule

Assumptions: starting population ≥1 M with this book, no inherited industry, competent governance (Ch 47) from day one. Dates are ELAPSED YEARS from start.

Phase 0 — Survival (years 0–2)

Fire discipline, toolkit, cordage, food acquisition + preservation, first shelters, prospecting register begun (Ch 1–4, start of 6, 13). Exit criterion: zero starvation risk in worst modeled season; tool production self-sustaining.

Phase 1 — Settled agriculture (years 2–30)

Pottery, full settlement buildout, crop packages + rotation, animal domestication, writing adopted immediately, numerals with zero taught universally, money/markets established early (Ch 5–12). Exit: grain surplus >25 % above consumption stored rodent-proof; literacy >50 %; kilns firing reliably.

Phase 2 — Classical industry (years 30–150)

Copper/bronze compressed into furnace apprenticeship (~decade), then bloomery iron at scale; mills on every good stream; craft chemistry maturing; mining doctrine running (Ch 13–17). Exit: iron tools cheaper than stone equivalents; water power exceeds muscle power regionally; written technical manuals circulating.

Phase 3 — Acceleration (years 150–250)

Printing press within reach of every town; lens workshops → telescopes/microscopes; instrument culture + scientific societies institutionalized; black powder + acid industry online; coke smelting breaking wood ceilings (Ch 18–22). Exit: identical textbooks across regions; measurement standards enforced; iron output compounding annually.

Phase 4 — Steam and electrification (years 250–320)

Watt-correct steam engines; railways with telegraph pairing; batteries → dynamos → polyphase grids; sanitation wave begins (Ch 23–26, 30). Exit: grid power in major cities; freight costs <10 % of goods value; urban death rates falling visibly.

Phase 5 — Modern stack (years 320–420)

Steel/concrete at scale, petroleum refining, ICE fleets, tractors, Haber-Bosch, clinical medicine, flight, vacuum tubes as scaffolding then straight to silicon planar ICs, computers, fission plants (Ch 27–37, 32). Exit: yields >4 t/ha sustained; antibiotics under stewardship; working integrated circuits fabbed domestically.

Phase 6 — Planetary (years 420–500)

Polymers/composites mature, orbital launch, satellite constellations, fiber backbone, internet protocols, modern energy portfolio, biotech platforms, robotics, machine intelligence (Ch 38–46). Exit criterion = D.0's five dominance capabilities met simultaneously (Appendix D).

Where the Schedule Bends

Tighteners: coastal iron sand or bog iron (Phase 2 accelerates decades); surface coal seams (Phase 3–4 accelerate); preserved libraries/engineers (whole plan compresses toward Phase 3's exit by year 100); strong institutional culture avoids the century-scale waste of monetary/legal instability.
Hard floors (do not fantasy-compress):
Population: specialists need surplus feeding them; sub-1M populations cap out around late Phase 3 complexity.
Mining depth accumulation: ore bodies reveal their structure only as workings deepen; geology can't be rushed.
Tacit skill formation: smithing, glassblowing, machining take years-per-generation of hands-on apprenticeship — books transfer knowledge, not knacks. Budget generations, not months, for craft maturity (Ch 14's warning stands).
Institutional trust compounds slowly: credit systems, statistical bureaus, and scientific norms each need decades of kept promises before they bear load (Ch 47).

Realistic total: ~450–550 years to full planetary capability, versus history's ~10,000 — the book's entire value proposition is that compression, purchased with knowledge instead of blind exploration.