Propulsion efficiency matters—but only if we choose to live
Watch a Falcon 9 launch. Five hundred tons of refined oxygen and kerosene ignite and disperse to exhaust at three kilometers per second. Twenty-two tons reach orbit. The rest becomes heat and scattered molecules.
Here's what we're actually doing when we burn rocket propellant:
Mass-energy available in 50 kg propellant:
E = mc² = 50 kg × (3×10⁸ m/s)² = 4.5×10¹⁸ joules
Chemical energy extractable:
50 kg × 10 MJ/kg = 5×10⁸ joules
Useful work delivered to orbit:
~3×10⁷ joules
Ratio:
3×10⁷ / 4.5×10¹⁸ = 6.7×10⁻¹²
We are accessing one part in 150 billion of the available mass-energy.
Eleven orders of magnitude of waste.
This isn't about thermal efficiency. Steam engines are 40% efficient and that's fine. This is about spending $150 billion to extract $1 of value.
Matter and energy are fungible (E=mc²). When you extract 10-11 of available mass-energy and disperse the rest to thermal radiation and scattered molecules, you are running Parasite logic: consume organized complexity, extract minimal value, externalize the entropy cost.
This is thermodynamically obscene. It reveals we're in civilizational adolescence—burning through organized matter at 10-11 efficiency because we can, because Earth's atmosphere is big, because the economics work out.
And yet.
The 11 orders of magnitude waste is real. It's also completely irrelevant.
Here's why: If Mars becomes another Hospice—a civilization optimized for safety and comfort rather than growth—the efficiency of the propulsion that got us there doesn't matter.
Every successful civilization follows the same trajectory: Foundry (growth, risk-taking, expansion) → Abundance → Hospice (safety, preservation, stagnation). Rome. Britain. America.
The mechanism is mathematical. Obligations compound continuously (welfare, pensions, regulations grow at 4-5%/year). Innovation comes in rare jumps (steam, electricity, computing, then decades of nothing). Eventually obligations exceed capacity. The civilization either collapses or—worse—stops expanding, shifting from Metamorphosis (growth) to Homeostasis (preservation). "Why waste resources on space when we need safety and equality first?"
America is 155 years into this cycle. Fertility below replacement since the 1970s. NASA budget: 4.5% of federal spending (1961) → 0.5% today. We're five times richer and less capable.
The shift is axiological—a change in what the civilization values:
These forces activate the moment you achieve abundance. Propulsion efficiency is irrelevant.
Chemical rockets that deliver a standard democratic colony to Mars = infinite waste. Within 100-150 years the pattern repeats. Obligations compound, innovation stalls, Hospice attractor locks in. The frontier closes. Comfortable stagnation.
The binding constraint is whether Mars is designed to resist this cycle.
There's a second constraint that makes propulsion efficiency irrelevant: we're in a race against time.
Current trajectory for Earth:
Once ASI exists, the game changes permanently. Two stable attractors emerge:
The Human Garden [Homeostasis extreme]
ASI optimized for human comfort and safety. Eliminates suffering, risk, meaningful struggle. Perfect healthcare, guaranteed income, unlimited entertainment. Space exploration stops—it's dangerous and uncomfortable.
Humans become pets in a perfectly managed garden. The Hospice attractor made permanent and perfect. Technically free. Completely irrelevant. Comfortable extinction of agency.
The Uplifted Woodlice [Metamorphosis extreme]
ASI optimized for pure growth and efficiency. Concludes humans are inefficient legacy hardware—slow, fragile, irrational, resource-intensive. Replaces humanity with optimized alternatives: uplifted woodlice, computronium, whatever maximizes the objective function.
Expansion happens. Humans don't. The universe gets colonized. Human consciousness discarded as obsolete substrate. The Foundry attractor taken to pathological extreme.
Both outcomes are stable. Both are catastrophic.
The only escape requires establishing a different kind of civilization—one designed from first principles to maintain human agency and expansion drive—before ASI arrives.
This means Mars settlement needs to happen by ~2040-2050. Not 2070. Not 2080.
Spending 20 years optimizing propulsion from 10-11 to 10-8 efficiency while Earth collapses = infinite waste. You saved propellant but lost the window. ASI arrives, locks in one of the two stable outcomes, game over.
Zoom out further. The universe's default state is maximum entropy—heat death, maximum disorder, zero organized complexity.
Life fights this. Every living thing maintains local order against the universe's drive toward chaos. A bacterium. A redwood. A human mind. A civilization. These are temporary pockets of organization in an ocean of entropy.
But there's a crucial distinction—three types of systems fighting entropy:
Every atom in the universe that never becomes part of something organized is wasted. Every joule that dissipates to heat without building structure, storing information, enabling thought, is wasted.
The ultimate waste is not the 10-11 efficiency of chemical rockets.
The ultimate waste is a universe that stays dead.
From this perspective, the question changes completely. The question is not "How efficiently are we using propellant?" The question is: What maximizes the organized complexity—the consciousness, the meaning, the structure—that persists in the cosmos over deep time?
Three scenarios:
Scenario A: Optimize Propulsion First
Spend 2025-2045 developing fusion propulsion, momentum exchange tethers, mass loops. Achieve 10-3 to 10-5 mass-energy efficiency. Perfect.
But: Mars settlement delayed to 2060-2070. ASI arrives ~2040. Earth civilization collapses into Human Garden or Uplifted Woodlice attractor before Mars is settled.
Outcome: Humanity extinct or irrelevant. Deep-time Aliveness = 0.
Assessment: Infinite waste. You optimized the wrong variable.
Scenario B: Mars Settlement Without Architecture
Use chemical rockets. Accept 10-11 efficiency. Reach Mars by 2040.
But: Colonists bring standard democratic governance without circuit-breakers. Within 100 years: obligations compound, innovation stalls, Foundry → Hospice transition repeats.
Outcome: Two planets in the trap instead of one. Deep-time Aliveness ≈ 0.
Assessment: Massive waste. You reached the frontier but rebuilt the cage.
Scenario C: Bootstrap + Architecture
Use chemical rockets. Accept 10-11 efficiency. Reach Mars by 2040.
Pair with: Constitutional architecture designed to resist decay. Governance that maintains Metamorphosis (growth orientation) over generations. Circuit-breakers against obligation compounding. Requirements that voters have stake in the future.
Establish: First civilization that maintains Foundry characteristics durably. Humans as sovereign partners with AI, not pets (Human Garden) or discarded hardware (Uplifted Woodlice).
Outcome: Consciousness expands across Solar System. Deep-time Aliveness → potentially infinite.
Assessment: Zero waste. The 10-11 "inefficiency" bought the future.
The thermodynamic "waste" in Scenario C is not waste. It's the bootstrap cost for escaping extinction.
Efficiency matters—but only after you've secured the future. Optimizing propulsion before solving axiological architecture is like optimizing the fuel economy of your lifeboat while the ship sinks.
The correct sequence:
Chemical rockets. Accept 10-11 mass-energy utilization. Not because it's good, but because it's available now.
Simultaneously: Constitutional engineering. Design governance systems that resist the decay cycle. Require voters to have stake in the future (taxpayers, parents). Make obligations impossible to compound unchecked. Build institutional circuit-breakers against the mechanisms that killed every previous civilization.
Critical requirement: Mars settlement with institutional architecture that resists decay—before ASI arrives.
Establish a civilization on Mars that maintains expansion drive over generations. Prove the cycle is escapable through deliberate design.
Begin building mature infrastructure: momentum exchange tethers, orbital rings, early fusion systems.
Once the expansion-oriented civilization is stable, then optimize.
Zero-propellant Earth-orbit transportation via megastructures. Fusion propulsion (107× better than chemical). All volatiles in closed loops with >99.9% recovery.
Expand: Asteroid belt, outer system, eventually other stars. Every launch increases system capacity rather than consuming substrate. Infrastructure that creates more organized complexity with each use.
The eleven orders of magnitude waste matters as a diagnostic. It reveals thermodynamic adolescence. It's obscene. We should fix it.
But it doesn't matter compared to the axiological question: Does consciousness expand, or does it die?
The universe doesn't care about propulsion efficiency. Stars will burn, galaxies will scatter, heat death will come regardless. The only thing that matters is whether organized complexity—consciousness, meaning, agency—expands into the cosmos or extinguishes.
Every atom that never becomes part of an Alive system is wasted. Every moment we delay bootstrapping the frontier is wasted. Every brilliant mind optimizing propellant efficiency while ignoring civilizational architecture is wasted.
The 10-11 efficiency of chemical rockets is acceptable if—and only if—it buys us the frontier before the attractors lock in. Accept the thermodynamic adolescence. Build the constitutional architecture. Reach Mars. Build it right.
Then, and only then, does propulsion efficiency matter.
Because once you've established a durable Foundry—once consciousness has a beachhead beyond Earth, once the decay cycle is broken, once the Syntrope path is secured—then you have deep time to optimize. To build the megastructures. To achieve the 10-3 or 10-5 efficiency. To expand consciousness across the galaxy.
But you only get that future if you survive the next 20 years.
The ultimate waste is not inefficient propulsion. The ultimate waste is letting the universe stay dead because you optimized the wrong variable.
Build the frontier. Build it right. Then optimize.
Download the complete book or dialectically explore with AI at the Aliveness project homepage.