Elon Musk has predicted that conventional money could eventually lose its importance as artificial intelligence, robotics and space-based industry create an economy where energy, power and physical resources become the more meaningful measures of wealth.
Elon Musk has offered a striking prediction about the future of the global economy, arguing that conventional currencies such as the dollar may eventually become irrelevant as artificial intelligence, robotics and space exploration dramatically expand humanity's productive capacity.
Musk made the comments during a conversation with his biographer Walter Isaacson on The Builders podcast. In the discussion, he described a future in which economic activity could become so large that traditional money would no longer be an effective way of measuring value.
“There’ll be a lot more stuff,” Musk said while discussing the potential economic impact of digital superintelligence, robots and space-based manufacturing. He went on to predict that money could eventually become irrelevant, while currency, if it still exists, could instead be measured using fundamental physical quantities such as power, mass and energy.
Musk’s vision of a post-money economy
Musk's argument is built around a future of extreme technological abundance.
According to his reasoning, increasingly capable AI systems and robots could dramatically increase the amount of goods and services produced around the world. If machines eventually become capable of performing most economically useful tasks more efficiently than humans, the relationship between employment, income and consumption could fundamentally change.
Musk has previously described a similar scenario as an “age of abundance,” in which AI and robotics could produce so much that people would no longer need to work simply to meet their basic economic needs.
In his latest discussion with Isaacson, he pushed the idea further.
Musk argued that if humanity develops advanced robots and expands industrial activity into space, the potential size of the economy could become many orders of magnitude larger than the current Earth-based economy.
“If you have robots and you get to space and can do a mass driver on the moon,” Musk said, humanity could potentially create an economy “a million times the size of the Earth economy.”
That is the point at which he believes conventional money could lose much of its significance.
Why energy and mass could become more important
Rather than imagining a future with no measurement of value whatsoever, Musk appears to envision a system in which physical resources become the fundamental constraint.
He said currency could still exist, but its measurement could be tied to physical quantities such as wattage, tonnage, mass and energy.
In today's economy, money acts as a common medium for exchanging goods and services. A person can use dollars, euros, naira or another currency to buy food, electricity, property, machinery or services.
But money itself does not create those things.
Behind virtually every economic activity are physical inputs: energy, raw materials, machines, land, transportation and human or machine labor.
Musk's argument is essentially that as AI becomes more powerful, those physical inputs could become more important than conventional financial balances.
If robots can manufacture products automatically, for example, the limiting factor may no longer be the availability of human workers. Instead, it could be the amount of electricity available to operate the robots, the computing infrastructure required to control them and the raw materials needed to build additional machines.
That is why Musk focuses on energy and mass.
AI could dramatically increase economic output
Musk also discussed the potential economic impact of what he calls digital superintelligence.
He estimated that advanced AI could increase the output of goods and services by roughly 20% to 30%, potentially adding around $30 trillion annually to the global economy. He described that as significant, but argued that it would become much more transformative if AI were combined with robotics and space-based industrial activity.
The distinction is important.
AI operating primarily through computers can increase productivity in areas such as software development, research, administration and analysis. But physical robots could extend automation into manufacturing, construction, mining, transportation and other industries.
If robots could also build more robots, manufacture solar panels, extract raw materials and maintain energy infrastructure, Musk envisions a potentially self-reinforcing cycle.
More energy could power more AI.
More AI could operate more robots.
More robots could produce more infrastructure.
More infrastructure could generate more energy and resources.
That cycle, in Musk's vision, could eventually produce an economy vastly larger than today's.
Space is central to Musk's prediction
Musk's prediction about money is closely connected to his long-standing interest in making humanity multiplanetary.
His argument assumes that humanity eventually moves beyond an economy based almost entirely on Earth's limited resources.
The Moon and other locations in space could potentially provide access to enormous quantities of raw materials and solar energy. Musk has previously discussed concepts involving lunar manufacturing and electromagnetic “mass drivers” that could launch materials from the Moon into space.
He has also argued that capturing even a tiny fraction of the Sun's enormous energy output could provide vastly greater computing capacity for future AI systems.
In June, Musk said that harnessing just one-millionth of the Sun's power for AI could theoretically provide computational capacity vastly beyond the combined intelligence of humanity. He linked such a scenario to manufacturing solar panels and radiators on the Moon and deploying them in space.
These concepts remain highly speculative and depend on technological developments that are far beyond today's capabilities.
Musk says work could also become irrelevant
The implications of Musk's prediction extend beyond money.
If machines can eventually perform virtually every economically useful task, Musk believes human employment could become optional.
During his conversation with Isaacson, he suggested there may eventually be little or nothing that humans can do that sufficiently advanced AI and robots cannot do better.
That raises a different question: if people no longer need to work for income, what would they do with their time?
Musk suggested that people could turn toward hobbies and activities that give their lives meaning, including growing food, making art and other pursuits that people undertake because they enjoy them rather than because they need a salary.
This represents a dramatic departure from the current economic system, where employment remains the primary way most people obtain the money required to purchase necessities and services.
Musk's prediction does not mean money is disappearing anytime soon
Despite the attention surrounding his comments, Musk's prediction should not be interpreted as an indication that conventional currencies are about to disappear.
The dollar, euro, pound, naira and other national currencies remain fundamental to today's global economy.
Businesses still price goods and services in money. Governments collect taxes in money. Workers receive salaries in money, while banks, financial markets and international trade continue to depend heavily on conventional currencies.
Musk is describing a hypothetical future rather than announcing a transition that is already taking place.
There are also significant economic questions surrounding his prediction.
Even if AI and robots dramatically increase production, scarcity would not necessarily disappear.
Some resources would remain limited. Land in desirable locations, certain minerals, water, energy infrastructure and other physical assets could continue to have competing uses.
That means some mechanism for allocating scarce resources would probably remain necessary.
Critics question whether abundance can eliminate scarcity
The idea that technology could eventually make money unnecessary has attracted both interest and skepticism.
Some economists and analysts argue that greater productivity does not automatically eliminate scarcity.
Even if robots could manufacture almost unlimited consumer products, there could still be competition for particular resources, locations or forms of energy.
For example, an AI-powered economy could require enormous quantities of electricity. If electricity production does not grow quickly enough, energy could become an increasingly valuable resource rather than something that is effectively free.
This makes Musk's emphasis on energy particularly significant.
His vision is not simply that the world will have more technology. It is that technological progress will eventually allow humanity to dramatically expand the physical resources available to the economy.
Musk's own fortune could become less important
The prediction is particularly notable because Musk is currently one of the world's wealthiest individuals.
Business Insider reported that Musk's net worth was estimated at about $920 billion at the close of Monday's trading, following the rapid increase in the value of his companies.
Yet Musk has argued that his enormous fortune may not remain meaningful for very long if his predictions about the future come true.
He told Isaacson that his wealth would likely be heavily taxed and gradually reduced across generations. Eventually, he said, his descendants could possess only a small fraction of his current wealth — assuming money still matters at all.
Musk has also linked his personal wealth to his control of Tesla and SpaceX, arguing that maintaining large ownership stakes gives him the voting power necessary to continue directing the companies.
The bigger question: who controls the energy?
Musk's prediction raises an important question about what “wealth” would mean in a highly automated economy.
Today, wealth is commonly measured through money, financial assets, company ownership, property and other economic instruments.
But in the future Musk describes, ownership of energy infrastructure and physical resources could become increasingly important.
That could include solar farms, nuclear power plants, batteries, electricity grids, data centers, semiconductor factories, robotics facilities and access to raw materials.
Computing power itself could also become a major economic resource because increasingly advanced AI systems require enormous amounts of electricity and specialized hardware.
In that sense, Musk's prediction may not actually describe a world without wealth. It describes a world in which the definition of wealth changes.
Instead of asking how many dollars a person, company or country possesses, society might increasingly ask how much energy it can generate, how much computing capacity it controls and how many physical resources it can access.
A radically different definition of economic power
The concept resembles a broader idea in science and technology known as the measurement of civilizations by their ability to harness energy.
A civilization capable of controlling dramatically greater amounts of energy would possess greater capacity to manufacture, compute, transport and build.
Musk's argument takes that idea and applies it to economics.
In his proposed future, the ultimate limitation would not necessarily be money.
It would be physics.
How much energy can humanity generate?
How much material can it extract?
How much computing power can it operate?
How many machines can it build?
How much infrastructure can it maintain?
Those questions could potentially become more important than the amount of money stored in a bank account.
For now, however, this remains a prediction rather than an established economic trend. The world still operates overwhelmingly through conventional currencies, and the technologies required for Musk's envisioned multiplanetary economy do not yet exist at the scale he describes.
But his comments highlight a broader debate already emerging around artificial intelligence: if machines eventually make production extraordinarily cheap and abundant, will money remain the best way to measure economic value?
Musk believes the answer could eventually be no.
Instead, he sees a future where energy, mass, computing power and physical resources become the foundations of wealth, while traditional currencies gradually lose the importance they have held for centuries.
