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“If you stop to think about it, we've essentially found a way to make sand think. It's miraculous.”
— Demis Hassabis, CEO of Google DeepMind
It is difficult to think of a more extraordinary sentence about our technological age.
Sand does not appear intelligent. It lies beneath our feet, blows across deserts, and accumulates on beaches. Yet refined silicon—the principal material of modern semiconductor technology—has become the physical substrate upon which increasingly sophisticated forms of computation and artificial intelligence operate.
We have, in a very real sense, discovered how to make sand participate in thinking.
But suppose this is not the end of the story.
Suppose it is only the beginning.
When the lithosphere begins to think
Imagine that over the next several decades, super intelligence becomes capable of designing better computational architectures, discovering new materials, optimizing manufacturing, and autonomously improving the systems that make computation possible.
Perhaps fifty years from now, we could reach a kind of saturation point in which the technological transformation of silicon becomes so extensive that it is no longer meaningful to think of computation merely as something we build. Vast portions of the lithosphere could become incorporated into planetary-scale computational infrastructure.
We might call this hypothetical stage Lithosphere Thinking.
It would represent a strange evolutionary threshold: matter traditionally regarded as geological would have become part of an organized planetary cognitive process.
And then comes the more interesting question:
What happens after sand thinks?
From silicon to water
My next candidate is water.
The human brain is already an astonishing clue. It is roughly 80 percent water, while its information processing depends upon electrical and chemical activity occurring through an extraordinarily complex aqueous environment.
In a sense, my brain is a tiny thinking hydrosphere.
The analogy is imperfect, of course. The hydrosphere as a whole does not possess a brain-like nervous system. But the thought experiment is provocative:
What if super intelligence discovered ways to use enormous volumes of water as a computational medium?
Could oceans, lakes, underground aquifers, engineered fluid systems, or microscopic structures suspended in water become components of a planetary information-processing architecture?
We should not assume that computation must remain trapped inside the familiar architecture of a silicon chip.
Nature has already demonstrated that information processing can occur in biological systems, chemical networks, fluids, electromagnetic fields, and countless other physical configurations.
Perhaps the future of intelligence will involve not merely making better computers, but discovering new physical substrates for computation.
The transition might therefore look something like:
Lithosphere → Hydrosphere → Atmosphere.
When the atmosphere thinks
The atmosphere presents an even stranger possibility.
Look at the sky.
Dust and gas molecules scatter sunlight, producing the blue of daytime and the extraordinary colors of sunrise and sunset. Clouds organize water droplets and ice crystals into immense dynamic structures. Atmospheric systems transport heat, moisture, chemicals, and information across an entire planet.
The atmosphere is already a vast physical system interacting with photons.
Could a sufficiently advanced intelligence learn to cultivate or engineer these natural optical processes?
Could it construct enormous atmospheric-scale optical processors that harness sunlight, scattering, interference, reflection, absorption, and other photonic phenomena?
At that point, intelligence would no longer simply be something running inside machines.
The machine itself could become the environment.
And perhaps the environment could become the computation.
The end of the machine?
This is where the thought experiment becomes almost indistinguishable from science fiction.
But science fiction has often served as a laboratory for asking questions before technology makes them technically meaningful.
Consider the idea of a Matrioshka Brain: a hypothetical nested system of computational structures surrounding a star and utilizing an enormous fraction of its energy for computation.
The important point is not whether such a structure will ever be constructed.
The important point is what the concept reveals.
There may be no obvious conceptual boundary between:
computer → infrastructure → planet → solar system → cosmic computation.
If intelligence is fundamentally a process implemented through matter and energy, then every new physical substrate potentially becomes a new computational frontier.
Silicon may be only one chapter.
Water may be another.
Atmospheric chemistry, photons, plasma, planetary magnetic fields, and eventually stellar systems could become further chapters.
The sequence of possibilities could become almost impossible to imagine.
But nature has the final word.
There is, however, one ultimate constraint:
natural law.
Not everything conceivable is physically possible.
Not everything physically possible is technologically achievable.
And not everything technologically achievable is desirable.
This third distinction is the one we too often neglect.
Here the ancient INDO-IRANIC concept of Rta/Arta becomes unexpectedly relevant.
Rta—or Arta—can be understood as a principle of cosmic order, truth, and rightness. What makes the concept particularly powerful for our technological age is that it does not neatly separate the order of nature from the order of ethics.
Modernity has often divided these domains.
Physics describes what is.
Engineering determines what can be done.
Ethics is then brought in afterward to ask what should be done.
But perhaps that separation is itself one of our civilizational pathologies.
What if natural law and ethical law belong together?
Imagine a scientist discovering a new physical possibility and saying:
It is not my job to think about values. My job is to discover what is possible.
Then imagine an engineer saying:
My job is to build it. Someone else can decide whether it should exist.
And finally imagine a policymaker being handed a technology whose consequences are already moving faster than institutions can understand.
Something has gone wrong—not necessarily with science, but with the fragmentation of responsibility.
The deeper question is not simply:
Can we make sand think?
It is:
What kind of world should emerge when sand thinks?
And if water begins to think?
And if the atmosphere begins to compute?
And if planetary systems become increasingly integrated into intelligence?
The distinction between natural evolution and technological evolution may eventually become increasingly difficult to maintain.
Yet precisely because the possibilities expand, ethics cannot become less important.
It must become more fundamental.
Not every possible future is a preferred future
This may be the most important lesson of planetary foresight.
The future is not a single destination waiting to be predicted.
It is a field of possibilities.
Super Intelligence could expand the space of what humanity can physically accomplish at extraordinary speed. But increasing capability does not automatically produce increasing wisdom.
A civilization can become more powerful while becoming less capable of choosing wisely.
The great challenge of the coming era may therefore not be creating intelligence.
We are already doing that.
The challenge may be developing an understanding of intelligence, nature, and ethics as parts of one planetary process.
Perhaps the ultimate question is not whether we can make sand think.
Perhaps it is whether, after teaching sand to think, we can learn how to think about what thinking should become.
That is where Arta returns.
The law of nature is not merely a boundary around possibility.
It can also become a question of right relationship within possibility.
And as intelligence moves from silicon toward water, atmosphere, photons, planets, and perhaps eventually stars, that question may become more important than the technology itself:
Not merely what can think—but what kind of thinking should the planet become?
