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Half‑Earth Survival Blueprint: 4x Gravity, 16x Pressure
What if Earth shrank to HALF its size (same mass)? How would we survive 4× gravity and ~16× surface pressure? This full survival blueprint breaks it down: pressure‑sealed domes, heliox suits, exoskeletons, underground transport, geothermal + SMRs, and launch rails for space.
You’ll learn:
• Why gravity jumps 4× and surface pressure ~16×
• Pressure domes, airlocks, and safe indoor atmospheres
• HELIOX breathing for outside ops (oxygen partial pressure)
• Exoskeletons, compression gear, “centrifuge gyms”
• Food: hydroponics, fungi, algae bioreactors
• Power: geothermal + small modular reactors (SMR)
• 6‑hour days: scheduling and circadian health
• Safety playbook: sensors, bulkheads, masks
• Space access: launch rails, nuclear‑thermal, beamed power
Chapters
0:00 Hook — Half‑Earth
0:18 Baseline changes (gravity, pressure, quakes)
0:58 Step 1–2: Pressure domes + HELIOX
2:03 Step 3: Gravity tools
2:38 Step 4: City design
3:03 Step 5–6: Food + Power
3:58 Step 7: Six‑hour day
4:23 Step 8: Health
4:48 Step 9: Outside missions
5:18 Step 10: Transport
5:43 Step 11: Comms & satellites
6:03 Step 12: Safety playbook
6:28 Animals, oceans, weather
6:53 Space access
7:23 Thrive + CTA
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