Nine steps before the curvature drive — where each frontier stands.
Ten breakthroughs, each with a five-level ladder: L1 foundation, L2 assisted, L3 conditional, L4 advanced, L5 mastery. Most technologies are stuck between L2 and L3 — not for lack of principle, but of engineering, cost curves, and social acceptance.
Energy: fossil L1, solar L2, fission L3, controlled fusion L4, Dyson sphere L5. We stand at fusion's door — ignition is done; what's missing is Q-value engineering and materials.
Matter: smelting, precision machining, 3D printing, nanotech, nano-3D synthesis. Atomic-scale manufacturing is still a lab miracle, not factory routine.
BCI: L1 decoding is research; L2 one-way control (cursor, robotic arm) serves patients; L3 two-way interaction is on the road. Neuralink sits between L2 and L3.
The longevity column is a medical-philosophy ladder: slow aging, replace organs, reset cells, clear damage to zero, transferable personal continuity. Level five is "who am I", not medicine.
Large models move fastest: chat, reasoning, agents, innovation, organizer. We climb L3 to L4. When AI becomes the organizer, AGI takes over the first force.
Each rung is decade-scale engineering. Pessimists see distance; optimists see climbers on every rung.
Full ladder: psyverse.fun
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