
The Pyramids of Giza cost around 1% of Egypt’s GDP*. The AI buildout is over 3% of GDP. AI is bigger than the pyramids.
The AI buildout also dwarfs the Manhattan Project, the Three Gorges Dam, and Chinese high-speed rail. All were under 1% of their country’s GDP.

The only project that compares: the construction of the U.S. railroads.
In peak years from 1870-2, railroads accounted for 4% of GDP, comparable to the AI buildout. But overall, expenditure on railroads ran about 2% of GDP per year from 1870-90.
If the AI buildout continues at this pace, it will be the biggest infrastructure project in human history.
What This Means for Markets
In 1900, railroads were 63% of the value of the stock market. Today, the Mag 7 are 35% of the S&P 500.
The railroad era shows us that during a capex boom, the companies doing the buildout become enormously valuable. This is historically normal.
Seven companies accounting for such a large share of the market has never happened in our lifetime. But given the scale of the AI buildout, it makes sense.
Selling to the Hyperscalers: The Best Business in Town
In the biggest capex boom ever, there’s no better business than selling to the hyperscalers.
They’re spending a large and rapidly growing share of GDP to build out AI. If you can help, you make a fortune.
I’ve made one investment after another in AI infrastructure. I have three companies handling different aspects of the data market: Micro1, Hub, and Cortex AI. I also have Brick, which helps data centers reduce energy costs.
If there’s one thing I’ve learned in my career, it’s to put myself in a market that’s growing really fast. I did it with medical software back in the 2000s, and I’m doing it with AI today.
Wrap-Up
As I write this, I’m sitting in a red wingback chair in my living room. Everything around me was brought via rail.
This chair, the footstool, the coffee I’m drinking. All possible because of a massive capex buildout.
The AI buildout will make possible things we cannot imagine. We will have access to unlimited intelligence.
Is that worth 3% of GDP? Absolutely.
*Note: Egyptologist Jose Miguel Parra estimates that the Pyramids of Giza cost about 5-6% of Egypt’s state budget. It’s difficult to know what percent of the economy went to the state in taxes, but one study finds that Egypt’s government took 15-20% of all grain harvested in the kingdom. Grain was the primary source of wealth at the time. If the Pyramids at Giza were 6% of the state budget and the budget was 20% of the economy, that would mean the pyramids cost about 1.2% of GDP.
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