How Do You Solve Resource Scarcity With Limited Space on Earth?
Every post-scarcity thread eventually gets this reply, usually from someone who has done the arithmetic. A composite of the versions we keep seeing:
“Fine, fusion makes energy cheap and robots do the work. The Earth is still the same size. There’s only so much farmland, only so much fresh water, only so much lithium, and only so many houses with an ocean view. Eight billion people, one planet. How is that post-scarcity?”
It’s a fair challenge, and the short answer is that “limited space” bundles three different problems together. Some resources look scarce but are really energy problems. Some are genuinely limited by geology. And one, location, can’t be manufactured at any price. Unscarcity handles each of the three differently, and the third gets its own tax.
Most “Scarce Resources” Are Energy Wearing a Costume
Start with water. The planet isn’t short of it; it’s short of cheap fresh water in the right place. Desalination’s energy requirement has fallen 85 percent since the 1970s, from about 20 kilowatt-hours per cubic meter to about 3, which puts seawater-to-tap at roughly $0.41 to $1.00 per cubic meter. Israel, once among the most water-stressed nations on Earth, now gets 86 percent of its drinking water from the sea, and in October 2025 began pumping desalinated water into the Sea of Galilee to refill a natural lake.
Food runs on the same logic, but the constraint is area. Singapore covers 728 square kilometers, about one percent of it agricultural. Its answer was to grow up instead of out. Sky Greens, the world’s first commercial vertical farm, opened there in 2012: 2,000 rotating aluminum towers, nine meters tall, yielding 800 tonnes per hectare a year, five to ten times what a conventional field produces. Electricity for lighting and climate control is among a vertical farm’s largest operating costs, which is why cheap power decides whether the model scales.
Then materials. Chapter 1 of the book walks through the bill for a $300,000 apartment, of which 35 percent is materials, and asks what a material cost really is. Concrete costs money because someone quarried limestone, fired it in a kiln and trucked it to the site. Remove the embedded energy and labor and what remains is “silicon, calcium, iron, carbon: the most common elements in the Earth’s crust, sitting in the dirt beneath your feet.”
So the first part of the answer is that most of what feels finite is finite at today’s energy prices.
The Constraints That Don’t Dissolve
The book doesn’t claim everything gets solved that way. Chapter 1 says it directly: “Raw materials like rare earths, lithium, and cobalt face real geological constraints that cheap energy alone won’t erase.” Abundant energy makes deep-ocean mining, asteroid mining and molecular-level recycling worth doing, and the cost curve “bends sharply downward.” But, the text adds, “Materials don’t become free overnight.”
The working examples carry two more practical lessons.
The first is that a technology that works can still lose to the market. Singapore set a target in 2019 of producing 30 percent of its nutritional needs locally by 2030. In November 2025 it dropped the target. In 2025, local farms supplied about 8 percent of the vegetables, beansprouts and mushrooms the country ate. The vertical farms ran fine. Malaysian lettuce, grown with cheap land, labor and energy, sold for about half the price, and the market chose Malaysia. The technology was never the bottleneck.
The second is that abundance doesn’t remove risk, it relocates it. Starting August 29, 2026, an algae bloom drifting up from the Nile Delta clogged the reverse-osmosis membranes at five of Israel’s six large seawater plants. The shortfall reached about 2 million cubic meters a day, more than half of summer demand. Israel cut farm irrigation and drew harder on the Sea of Galilee and its aquifers; the lake dropped ten centimeters in ten days. Six intake pipes on one coastline traded a geopolitical vulnerability for an engineering one. The fix is the old engineering answer: redundancy, spread-out sites, and a reservoir kept full for the bad week.
Location Is the Last Line Standing
The third problem is the real one, and the book names it. Once energy, labor and materials fall away, what remains on Maria Delgado’s apartment invoice is permits and land. And land splits in two. It “loses the part of its value that came from the resources underneath it, even as the part that comes from location, from who and what is nearby, becomes the last scarce thing standing. Robots can pour the concrete. They cannot attend the planning commission.”
No reactor makes a second Big Sur coastline. The book’s answer is to stop pretending otherwise and sort location into the right box. A beachfront in Big Sur stays on what Chapter 1 calls “the priced margin above that floor,” sold for money for as long as there’s a money economy around it. The floor itself, a decent home in a working community, doesn’t depend on owning a view. And the value a community creates by being a good place to live gets taxed back into the community.
From the Podcast: Ohio Votes on the Map
The November 4, 2026 episode of Minds, Bodies & Terawatts, our daily podcast, covered the planning-commission problem as it happened. Its headline: Ohio Voters Banned Data Centers in Ten Towns by Landslides, Fired the Officials Who Signed the Deals, and Ousted the Senator They Called ’the Face of Data Centers’.
Voters in at least fourteen Ohio towns passed bans or limits on data centers on Election Day. Trenton banned large data centers with 80 percent of the vote, blocking an annexation of land for a 1,000-megawatt Amazon campus. Piqua and Urbana recalled the officials who had backed campus deals. The episode’s sharpest detail is the limit of all this. Trenton’s ban stops at the city line, the Amazon land sits in rural townships next door, and one of those townships’ own zoning commission has now voted to write data centers out of its zoning.
None of these towns ran out of acres. The AI buildout, the industry that’s supposed to make everything abundant, ran out of neighbors willing to say yes. That’s the space constraint in its real form: who decides what goes where, and whether they were asked.
On unscarcity.ai: Three Articles Behind This Answer
End of Resource Wars covers water, the desalination arithmetic, and the full account of Israel’s algae bloom and why it changed the shape of the risk instead of reversing the trend. Singapore Smart City is the closest real test of running a country on almost no land, including the honest post-mortem on its vertical-farming target. The Land Tax That Funds Abundance covers what to do about location: Henry George, the Nobel-backed theorem behind him, and the places that tried it, from Harrisburg to Estonia.
In the Book: The Tax on the One Thing That Can’t Move
Chapter 8 of Unscarcity, “The Transition, the EXIT or the Fire,” picks up exactly where Chapter 1 leaves the land question. In the section “But Who Pays for This? 2032 to 2045,” the Land Value Tax is the third of four funding mechanisms for the Free Zones. The book traces it to Henry George, who made it a national cause in the 1880s, running for mayor of New York and finishing second, ahead of the future president Theodore Roosevelt. A century later, it notes, a Nobel-winning economist proved that a community’s land rents can exactly cover what it spends on public goods.
The working example is Singapore, which owns more than 90 percent of its developable land, leases it on 99-year terms, and funds public housing for 80 percent of its people from the proceeds. The Free Zone version follows the same loop: “As the Foundation makes a Free Zone desirable, the land underneath it climbs in value. Tax that, not labor, and the community funds itself. AI hides on servers and capital flees to tax havens, but land cannot move.”
So the finite part of the planet becomes the thing that pays for the rest. The book works through the other three mechanisms. By Chapter 10, the first American Zones, in Kansas, Nebraska and the Dakotas, already “pay for themselves off the value of the land under them,” capped at the county line.
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