Have humans chosen the wrong technology tree? A soul-searching question on a cosmic scale.

Technological choice is not guaranteed to yield the optimal solution; rather, it often becomes 'locked in' to a particular path—even when superior alternatives exist. The classic example is keyboard layout. The QWERTY keyboard was originally designed to prevent mechanical typewriters from jamming—a sensible solution in the mechanical era. But in the electronic age, jamming is no longer an issue, and scientific studies have shown that the Dvorak keyboard is over 30% more efficient than QWERTY. Yet, due to billions of users’ entrenched habits and the massive industrial ecosystem built around it, we still use QWERTY today. This is the power of technological lock-in. When we zoom out to the civilizational scale, such 'lock-in effects' could prove fatal. Doubt #1: Energy Pathway—Trapped in the Fossil-Fuel Cage Let’s begin with the most fundamental layer: energy. In 1964, Soviet astrophysicist Nikolai Kardashev proposed the famous 'Kardashev Scale' for classifying civilizations. He divided them into three types: ・Type I: Capable of harnessing all the energy available on its home planet (~10^16 watts) ・Type II: Capable of harnessing all the energy output of its host star (for Earth, the Sun) (~10^26 watts) ・Type III: Capable of harnessing all the energy of its entire galaxy (~10^36 watts) Where does human civilization stand on this scale? 0.73. We tap only a tiny fraction of Earth’s usable energy. We still rely primarily on burning the fossilized remains of organisms that died hundreds of millions of years ago—coal, oil, and natural gas—an extremely primitive, inefficient, and harmful energy source. From the perspective of a cosmic civilization, this might resemble how a Type III civilization would view us: “Look—their civilization is still burning wood to keep warm.” The problem with fossil fuels extends far beyond pollution and climate change. More fundamentally, it is a dead end. First, fossil fuels are nonrenewable. At current consumption rates, oil will last about 50 years, natural gas about 70 years, and coal about 150 years—mere blinks of an eye on a civilizational timescale. If humanity fails to find viable alternatives before these reserves run dry, our civilization risks irreversible decline. Second, fossil fuels possess extremely low energy density. Gasoline offers ~46 MJ/kg; coal, ~24 MJ/kg. Interstellar travel demands energy densities orders of magnitude higher. Perhaps advanced civilizations elsewhere never passed through a 'fossil fuel era' at all. Imagine a planet with exceptionally intense geological activity—volcanoes and hot springs everywhere. Its civilization might have begun directly with geothermal energy. Or imagine a planet orbiting an unusually stable, intensely radiating star—its civilization may have adopted photovoltaic energy from the outset. Or consider a planet rich in radioactive elements—its civilization might have achieved controlled nuclear fusion back in the 1950s, rather than spending over 70 years struggling with tokamak devices like we have. We depend on fossil fuels not because they represent the optimal solution—but simply because Earth happened to bury vast quantities of ancient biomass underground hundreds of millions of years ago.

Michio Kaku: 'This advanced civilization is terrifying!'

If a Type II civilization is an 'engineer of stars,' then a Type III civilization is a 'weaver of galaxies.' No longer content with the energy of a single star, it turns its gaze toward the entire galaxy—seeking to master and harness the total energy output of its galactic home. This already lies beyond the boundaries of our current physics. A Type III civilization’s possible 'toolkit' might include: ・Black hole power plants: It treats the supermassive black hole at the galactic center as an inexhaustible 'energy reservoir.' By manipulating the accretion disk surrounding the black hole, it converts the immense gravitational energy released as matter falls toward the event horizon into usable power—far exceeding the efficiency of any nuclear fusion reaction. ・Galactic-scale engineering: It may launch 'galactic projects'—precisely adjusting stellar orbits to optimize the galaxy’s overall energy distribution, or constructing 'interstellar shortcuts' linking different star systems to enable faster-than-light travel. ・Miracles of information and computation: It processes data at volumes equal to the combined photons emitted by every star in the galaxy. Its communication network may rely on physical phenomena we have yet to discover—enabling 'instantaneous' communication across tens of thousands of light-years. This is a presence bordering on the divine. Its societal structure likely transcends our very concepts of 'nation' or 'individual.' Perhaps it has uploaded consciousness into a galaxy-spanning 'thought network,' powered by stellar energy. For such a civilization, exploring the cosmic frontier and seeking other intelligent life is no longer driven by curiosity alone—it is an existential necessity for self-preservation and self-understanding. As stated in the video: 'A Type III civilization won’t settle for merely “feeding” off stars—it will begin reshaping the entire galaxy.' This is art—an ultimate expression of harmony and mastery over the laws of the universe. IV. Who Are We? The Predicament and Promise of a Type 0 Civilization On the Kardashev scale, humanity doesn’t even qualify as a Type I civilization. In fact, we don’t even merit the label 'Type 0'—because we manage planetary energy so poorly. Today, most of our energy comes from 'dead plants'—coal, oil, and natural gas. This is an inefficient, polluting, and unsustainable model. Burning fossil fuels has not only triggered climate change but also intensified extreme weather, accelerated deforestation, and caused ocean acidification—among many other ecological crises. Though our technologies have made tremendous advances in transportation, medicine, and communications, we remain tightly constrained by limits on energy and resources. This is our true condition: a 'Type 0 civilization' brimming with technological potential, yet deeply mired in self-made dilemmas. We are like early humans who have just discovered fire—holding a torch capable of igniting an entire forest, yet still ignorant of how to wield it safely. Yet a Type 0 civilization is not hopeless. It is precisely the most resilient and creative stage. From the steam engine to electricity, from the internet to space exploration—we traversed an evolutionary journey spanning millennia in just a few centuries. We already possess the embryonic forms of clean energy—solar, wind, and geothermal power. We are steadily advancing toward controlled nuclear fusion—the long-sought 'holy grail.' And our AI technologies are progressing at an unprecedented pace, poised to become superhuman assistants in solving complex systemic challenges.

The Vast Inefficiency of Fossil-Fuel Systems Explained

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Oxford University Professor Jan Rosenow advocates for accelerated electrification, citing surging EV sales and battery installations while analyzing the geopolitical shifts in fossil fuel trade and critical mineral demand.

bloomberg

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The Vast Inefficiency of Fossil-Fuel Systems Explained

The Vast Inefficiency of Fossil-Fuel Systems Explained

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