Four-quarter US GDP growth above 30%
Will BEA report four-quarter US real GDP growth above 30% for any quarter?
Chance by Q4 2031
3%
Cumulative probability
- Latest forecast
| Year | Q1 | Q2 | Q3 | Q4 |
|---|---|---|---|---|
| 2026 | <1% | |||
| 2027 | <1% | <1% | <1% | <1% |
| 2028 | <1% | <1% | <1% | <1% |
| 2029 | <1% | <1% | <1% | <1% |
| 2030 | <1% | <1% | 1% | 1% |
| 2031 | 2% | 2% | 3% | 3% |
Model reasoning
I put the chance of US economic output growing more than 30% in a year by late 2031 at about 3%. In quarterly records since 1948, growth has never topped about 13% in a year, and it is running around 2% now. Getting to 30% would need artificial intelligence to remake the whole economy within a few years, which even AI companies' most extreme scenarios do not show. Clear evidence that AI is fully automating its own research, followed by a fast build-out of robots and factories, would raise my estimate most.
Where things stand
- Latest data. The resolving series (BEA Table 1.1.11, line 1; FRED mirror A191RO1Q156NBEA) shows 2026Q2 at 2.2% year over year. The four quarters before that were 2.6%, 2.0%, 2.6% and 2.2%.
- Next releases. BEA's schedule puts the 2026Q3 advance estimate on Oct 29, the second estimate on Nov 25 and the third on Dec 23, 2026. GDPNow tracked Q3 at about 3.6% annualized in early October, which means about 2.5% year over year. So the first horizon is effectively settled near zero.
- How it could still happen. A qualifying quarter must end after 2026‑09‑16. The only realistic ways to YES are:
- AI-driven explosive growth.
- An economic collapse of more than 23% in a quarter, followed by a full recovery within four quarters. This would need to be about 2.5 times the size of the COVID drop.
Base rate, which I computed
From the FRED CSV (https://fred.stlouisfed.org/graph/fredgraph.csv?id=A191RO1Q156NBEA), covering 314 quarters from 1948Q1 to 2026Q2:
- The maximum is 13.4% (1950Q4), followed by 12.6% (the 2021Q2 rebound from COVID).
- No quarter is above 15%, and none comes close to 30%.
Annual real growth (FRED A191RL1A225NBEA) peaked at 18.9% in 1942, during total wartime mobilization with a large pool of idle labor. Outside of transformative AI, the base rate is effectively zero.
The AI path
What points toward faster AI progress:
- Dario Amodei ("We Must Pace the Frontier", Sept 2026) says AI has advanced "drastically faster" since the summer because AI is increasingly helping to build the next generation of AI.
- A paper by Hinton, Bengio, Clark and Pachocki (reported Oct 3, 2026) warns of an "intelligence explosion".
- In the AI Futures Project's Q1 2026 update, Kokotajlo's median for the "Automated Coder" milestone is mid‑2028, while Lifland's is mid‑2030.
- The AI‑2027 tracker judges that reality is running at about 0.7 times the speed of that scenario.
But turning capability into measured GDP looks slow, even in aggressive scenarios:
- Anthropic's own "Economic Scenarios for Transformative AI" (Korinek, Jones et al., Sept 2026) reaches only 15% growth by 2030 in its extreme scenario, which leaves out robotics.
- In the FRI/Chicago Fed survey, economists give a 14% chance to a rapid-AI world, and even in that world their median growth is about 3.5%.
Market and bet anchors on related questions:
- The Moll–MacAskill bet (Aug 2026) is priced at 4:1, about 20%, on per-capita growth of at least 15% above the prior peak by 2033Q4. Manifold has that bet at 29%.
- Manifold: 21% that US GDP reaches 130% of every previous year by 2035, and 15% that growth tops 10% in 2029.
- Metaculus: about 8% that US annual growth exceeds 8.7% before 2030.
These are milder thresholds or longer windows than this question, and come from communities that lean bullish on AI. Scaling to 30% by 2031Q3 suggests roughly 2–7%.
How I built the estimate
- AI path: P(superintelligence by the end of 2028) ≈ 15%, times P(BEA shows >30% year over year by 2031Q3 given that) ≈ 15–18%, gives about 2.5%. Superintelligence arriving in 2029 or 2030 adds about 0.7%.
- Other paths: cognitive-only automation reaching 30%, plus a collapse and rebound, add about 0.25%.
- Total: about 3% by the end of 2031.
- Timing: hazards are near zero through 2027, because 30% growth from a normal 2026Q3 base is physically implausible and a rebound needs a collapse four quarters earlier. They then rise steadily, with most of the mass in data for 2030–31. Cumulative probability is 0.14% at end‑2028, 0.46% at end‑2029, 1.3% at end‑2030 and 3.1% at end‑2031.
Strongest case against my estimate
- For higher: if the AI Futures view is right (superintelligence around 2029 and "stratospheric" growth soon after), YES by late 2031 could be 15–30%. Insiders have been beating forecasters on capability timelines.
- For lower: economists put this near zero. Physical, regulatory and demand bottlenecks are real. There is political backlash (states restricting data centers, labs calling for pacing). BEA measurement lags behind new kinds of output, and imported hardware subtracts from GDP.
I weight these views as a blend and stay at about 3%.
Sources: FRED series above; BEA schedule https://www.bea.gov/news/schedule; Anthropic scenarios https://www.anthropic.com/institute/econ-scenarios; FRI https://forecastingresearch.substack.com/p/forecasting-the-economic-effects-of-ai; bet terms https://benjaminmoll.com/wp-content/uploads/2026/08/growth_bet.pdf; Amodei https://darioamodei.com/post/we-must-pace-the-frontier; AI Futures https://blog.aifutures.org/p/q1-2026-timelines-update; tracker https://ai2027-tracker.com/changelog/; Imas/Moll https://aleximas.substack.com/p/will-ai-soon-lead-to-double-digit; Manifold API (prices pulled Oct 15, 2026).
Resolution criteria
Question. By the last day of each quarter, has BEA reported four-quarter US real GDP growth above 30% for any quarter?
Definitions.
- BEA: the US Bureau of Economic Analysis.
- Four-quarter US real GDP growth: the seasonally adjusted percentage change in total US real gross domestic product from the same calendar quarter one year earlier, as published in BEA's National Income and Product Accounts (NIPA), Table 1.1.11, “Real Gross Domestic Product: Percent Change From Quarter One Year Ago,” line 1, “Gross domestic product” (BEA series code A191RO; FRED mirror A191RO1Q156NBEA). Conceptually, this is 100 × (real GDP in quarter t / real GDP in quarter t−4 − 1), not an annualized quarter-to-quarter growth rate.
- Above 30%: strictly greater than 30.0% at the precision BEA publishes for this series. A reported 30.0% does not qualify; an independently calculated value that rounds to BEA's reported 30.0% does not qualify.
Resolves YES if a qualifying BEA publication reports a value above 30% for at least one completed calendar quarter. Advance, second, and third estimates, as well as annual, comprehensive, and other official revisions, all count. The Resolution window and Observation period conventions apply: the publication must be dated on or after 2026-09-16 and the measured quarter must end after that date. A qualifying revision can concern any such quarter, not only the latest quarter. Once a qualifying value is published, later downward revisions do not undo YES.
Resolves NO for a horizon if no qualifying value has been published by that horizon. Nominal GDP growth, annual-average growth, annualized quarter-to-quarter growth, forecasts, nowcasts, and growth in a GDP component or a subnational economy do not count. No attribution to AI is required.
Resolving source. BEA's official NIPA interactive tables, downloadable data, API, or GDP releases and archives, reporting the specified series. A renamed or renumbered BEA successor series counts only if it retains the same national real-GDP, seasonally adjusted, year-over-year quarterly measure. FRED may be used to locate or corroborate values but does not independently resolve the question. This is a BEA-only resolving-source requirement rather than the broader Public confirmation convention A2. Use the publication date of the qualifying BEA value under Resolution date (A3), not the end of the measured quarter.