By The Briefcase Team | June 17, 2026

For as long as anyone selling a house has been selling a house, the closer has been the same. "Buy land. They are not making any more of it." Mark Twain said it. Will Rogers said it. Your uncle who flipped one duplex in 2014 says it at every Christmas dinner.

They are now, factually, making more of it.

This week, a Y Combinator-backed startup called GRU Space announced it is taking $1 million refundable deposits for the first hotel on the moon. The founder, Skyler Chan, walked onto This Week in Startups on June 15 with a brick. The brick was made of lunar regolith, which is the technical term for moon dust mixed with a geopolymer cement they will ship up from Earth. The plan, per Chan, is to send "a payload, like a mini spacecraft" to the lunar surface as early as next year, deploy a robotic arm, excavate the regolith, and start manufacturing bricks on site to shield an inflatable habitat. They are calling the aesthetic "Greco-futurism." One of the renderings looks like the Marin County Civic Center had a baby with the Death Star.

This is a Briefcase newsletter, so the first question we asked was the only one that matters: who is actually going to make money here.

The answer, as it has been for every gold rush in human history, is the people selling the picks and shovels.

GRU Space is YC's most recent batch graduate in the lunar manufacturing category. Chan's pitch is that "the moon hotel is simply the first wedge towards enabling us to build products on the moon." The plan, in order:

The price of admission is a $1M refundable deposit "to own a moon condo." NASA has committed roughly $20 billion to its Artemis lunar base program, which is the demand signal pulling this whole sector forward. Lunar Outpost is building the rovers. Venturi Astrolab is building the mobility platforms. StarCloud wants to send GPUs into orbit.

The wedges are everywhere. The bricks are real. Chan brought one to a podcast.

Before we go further, the boring but important part. The 1967 Outer Space Treaty, Article II, is the foundational document of space law. It says, in plain English, that the moon and other celestial bodies are "not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means." 115 countries have signed it. So has the U.S.

What this means for the GRU Space "moon condo": you cannot, in 2026, legally own a piece of the moon. You can own the equipment on it. You can own the products made from it. You can occupy a site, sort of, the same way you can park a yacht in international waters. But the dirt under the yacht is not yours.

The U.S. Commercial Space Launch Competitiveness Act of 2015 attempted to thread this needle by saying American companies can own resources they extract. The treaty lawyers are still arguing about whether that is consistent with Article II. The honest read is that the regulatory framework for lunar property has not been written yet, and the first companies to occupy lunar sites will, very likely, end up shaping it. That is what Chan is betting on. That is also why the $1M deposits have to be refundable.

You're thinking: cute, Briefcase. I sell mortgages in Ontario. Why am I reading about the moon?

Three reasons.

One. The 'they are not making more land' line is dead. Not metaphorically. Factually. Within most of our lifetimes, there will be habitable, deeded (or whatever the legal equivalent ends up being) structures on at least one celestial body. The scarcity argument that underpins half of residential real estate marketing has, philosophically, just gained an asterisk. It is still true on Earth. It is now provably false in the abstract. That changes the language. The honest pitch on terrestrial land becomes: "buy land here. They are making it elsewhere, but not in a Toronto suburb." That is a more interesting sentence than the old one.

Two. The skills are portable. Every single thing that has to happen to deliver a lunar hotel is a real estate problem dressed in a vacuum suit. Site selection (which crater has the right ice and the right sunlight angle). Title and use rights (currently a legal void, see above). Construction financing (the YC batch and follow-on rounds). Insurance (who underwrites a hotel a quarter-million miles from the nearest hospital). Project management (robotic arms doing the work). Asset management (operating the hotel). Brokerage (selling the condos). Every line item on that list is a job currently being done on Earth by someone who reads Briefcase. The TAM for those skills just expanded by, well, a moon.

Three. The infrastructure play is where the money is. This is the section we promised at the top.

The Klondike Gold Rush ran from 1896 to 1899. Roughly 100,000 prospectors stampeded into the Yukon. Maybe 30,000 to 40,000 actually reached Dawson City. Of those, around 4,000 found gold. Of those, only a few hundred got rich. Per Pierre Berton, the great Klondike historian, "the people who made money were not the ones who found a gold mine. They found a man who found a gold mine."

The real money was in Seattle. The Canadian government, in a rare burst of bureaucratic intelligence, required every prospector entering the Yukon to bring a year's worth of supplies. A ton of goods per person. Picks, shovels, ropes, stoves, flour, bacon, wool blankets, rubber boots. The Mounties at the Chilkoot Pass turned back anyone who showed up without it.

Seattle controlled an estimated 70 percent of all Klondike-bound trade. In the eight months after the SS Portland docked in Seattle with the first shipment of Yukon gold, Seattle merchants made $25 million. The miners in the Yukon, in the same period, found roughly $10 million in gold.

The shovel sellers made 2.5x what the gold finders made.

The most famous example: a farmer named John Nordstrom went to the Klondike, brought home his mine earnings, and used them to open a shoe store in Seattle. That shoe store became Nordstrom. The fortune was not the gold. The fortune was the next thing he built with the gold money, in the supply chain on the way to the gold.

This is the lesson for the space economy, exactly. The global space economy is estimated at $470 to $700 billion in 2026 per various analysts, with Morgan Stanley projecting SpaceX alone could reach $3.4 trillion in revenue by 2040. That is a 5x to 7x growth runway. The hotel on the moon may or may not work. The launch infrastructure, the regolith-cement chemistry, the orbital data centers (StarCloud), the rovers (Lunar Outpost), the mobility platforms (Venturi Astrolab), the geopolymers, the insurance products, the legal frameworks, the financing structures: those are the picks and shovels.

The investor who put money into SpaceX in 2010 is the John Nordstrom of this era. The investor who buys GRU Space's hotel concept hoping to flip a moon condo in 2032 is the prospector who climbed the Chilkoot Pass with 100 pounds of beans and no plan.

This is markets doing what markets do. A new frontier opens. Capital pours in. Most of it gets vaporized. Some of it ends up in the hands of a handful of operators who built the infrastructure everyone needed. The infrastructure operators become institutional. The frontier becomes mature. A new frontier opens somewhere else.

We are in the early innings of the most expensive infrastructure build in human history. The honest investor question is not "can I get rich on a moon condo." It is "what does the supply chain to the moon look like, who owns the chokepoints, and how do I get exposure to those chokepoints without betting the farm on any single mission succeeding."

For most of us reading this, that means SpaceX-adjacent ETFs, the public-market names that supply the launch and habitat ecosystem, and (for the more adventurous) the YC and venture funds that have a position in the pre-IPO infrastructure layer. It means looking at the housing-tech analogs (modular construction, robotic excavation, novel cements) and noticing which of those companies have lunar contracts in their pipeline. It means treating GRU Space less as a hotel investment and more as a signal that the demand curve for everything one layer behind it has just steepened.

Artemis budget renewal. NASA's $20 billion Artemis commitment is the biggest single demand signal in this sector. If Congress reauthorizes at or above current levels, every infrastructure name in the food chain gets a tailwind.

The Outer Space Treaty rewrite. Watch for U.S. State Department signals on whether a successor framework gets proposed. The first country (or coalition) to write modern lunar property law gets to set the rules. Whoever sets the rules captures the value.

GRU Space's first payload. Skyler Chan said "as early as next year." The launch window matters. If GRU Space lands a working brick factory on the moon in 2027, the entire investment narrative for the sector accelerates by five years.

The cliche that they are not making more land has, this week, become factually wrong. A YC startup is taking $1 million deposits for a hotel on the moon, built out of bricks made from lunar dust, in an architectural style the founder calls Greco-futurism.

The hotel may or may not get built. The deposits are refundable for a reason. But the supply chain underneath the lunar economy, the bricks and the rovers and the geopolymers and the legal frameworks and the financing products, is going to get built either way, because NASA is putting $20 billion behind it and SpaceX is putting another planet's worth of capability behind that.

Buy land. They are not making more of it on Earth. They are making some of it on the moon. The smart money in 1898 sold shovels in Seattle. The smart money in 2026 sells the modern equivalent.

Find your shovels.