Can AI Cause Explosive Global Economic Growth?

TL;DR

AI could cause explosive global economic growth if capable AI agents automate human tasks and multiply much faster than the human workforce. Some models project annual growth of 20% or 30%, compared with the 2% to 3% norm in advanced economies, as returns from AI agents, data centers, and energy are reinvested into more AI power. Read on to understand the bottlenecks, effects on workers and assets, and market signal to watch.

Transcript

In 1700, it would have seemed natural that economies only ever stood still. In the common era up to that point, output had expanded by just 0.1% per year on average. Then, steam engines began to puff. Global growth quintupled to 0.5% per year between 1700 and 1820. By the end of that century, it had reached 1.9%. And in the 20th century, output gre... Read More

Key Insights

• Global economic growth has repeatedly stepped up: output expanded by 0.1% per year on average in the common era up to 1700, 0.5% per year between 1700 and 1820, 1.9% by the end of the 19th century, and 2.8% on average across the 20th century.
• The Silicon Valley thesis is that AI will become powerful enough to carry out all sorts of tasks currently done by humans, and eventually all of them, which in some economic models produces completely explosive growth of 20% or 30% a year.
• Pre-industrial growth ran on the accumulation of labor, where the size of the economy was closely linked to the size of the population, because more people meant more ideas and more output which in turn brought death rates down.
• The core claim behind explosive growth is that AI workers accumulate far more rapidly than human workers, since you do not have to wait generations for the workforce to grow, so investment payoffs recycle into more AI power almost immediately.
• The realistic path is intermediate phases lasting a very long time, constrained by bottlenecks: limits on how fast AIs improve, how much investment can take place, regulatory barriers to robots displacing humans, or fundamental limits on what AIs and robots can do.
• Cost disease means that when productivity grows rapidly in one activity and barely at all in another, wages in the low productivity sectors still rise a lot, so displaced workers may find plenty of highly remunerated work left to do.
• Many in Silicon Valley argue labor will eventually have no value and only capital will, but the same explosive growth models imply interest rates rise sharply, and higher rates tend to reduce asset prices, muddying what a capital owner should actually buy.
• Long-term bond yields are the signal to watch, because US stock markets show high AI valuations while money markets do not price in explosive growth, which is consistent with AI simply being the latest technology keeping the economy on a normal path.

Questions & Answers

Q: Can AI cause explosive global economic growth?

Yes, some economic models suggest that sufficiently capable AI could produce annual growth of 20% or 30%, compared with the 2% to 3% familiar in advanced economies. The mechanism depends on AI eventually performing many or all human tasks and allowing the workforce to expand far faster than a human population can.

Q: How would the economy move from 2% or 3% growth to 20% or 30% growth?

Massive investment would create AI agents, data centers, energy capacity, and related infrastructure. Automating many tasks would generate growth, and the payoff could then be reinvested into still more AI power, making the cycle turn rapidly.

Q: Why could AI workers accumulate faster than human workers?

Expanding a human workforce requires generations to pass, while additional AI agents can theoretically be produced through investment. If those agents are highly capable, their output can finance more computing power and AI production almost immediately.

Q: What could prevent AI from producing explosive growth?

Long intermediate phases could be constrained by limits on how quickly AI improves or how much AI investment can occur. Regulation could restrict robots from displacing humans, and fundamental limits may prevent AI systems and robots from performing every task.

Q: How might AI-driven growth affect workers?

People working in automatable roles could be displaced more quickly and may need to move into sectors where AI remains less capable. The transition could create substantial disruption even if well-paid human work remains available elsewhere.

Q: What is cost disease, and how could it help displaced workers?

Cost disease occurs when productivity rises rapidly in one activity but slowly in another, while wages in the low-productivity sector still increase substantially. For workers displaced by AI, this could mean that highly remunerated work remains in sectors that are harder to automate.

Q: Should investors buy AI company stocks if they expect explosive growth?

Some people argue that owning AI companies and complementary assets is essential because capital would retain value even if labor did not. However, explosive-growth models also imply sharply higher interest rates, which tend to reduce asset prices, so the models do not provide a clear answer about what to buy.

Q: What market signal would indicate that explosive AI growth is coming?

Long-term bond yields are the key signal to watch because explosive growth should push interest rates sharply higher. Current money markets do not price in explosive growth or a major rate increase, even though US stock markets give AI companies high valuations.

Summary & Key Takeaways

• World output expanded by just 0.1% per year on average in the common era up to 1700. Steam engines quintupled global growth to 0.5% per year between 1700 and 1820, growth reached 1.9% by the end of that century, and output grew by 2.8% on average in the 20th century. The long history of the world economy is one of expansion at an increasing rate.

• Early growth came from the accumulation of labor: economy size was closely linked to population size, a bigger population produced more ideas, and more output pushed death rates down. AI agents replace that slow generational loop with massive investment in AI agents, data centers and energy, whose payoff is reinvested into still more AI power, turning the loop far faster.

• Explosive growth implies higher interest rates, because heavy demand for data centers, energy and infrastructure meets reduced willingness to save among people who expect to be rich tomorrow. Higher rates tend to reduce asset prices, so even holding capital does not clearly tell you what to buy. Money markets currently do not price in explosive growth or a big rate rise.