Recent forecasts from the OECD, IMF, and others place 2026 global GDP growth in the 2.6–3.0% range, with the OECD lifting its September projection to 2.9% as the economy absorbs the Middle East energy shock better than anticipated. Elevated oil prices near $100 per barrel and renewed inflation pressures have prompted expectations of firmer monetary policy, yet AI-related capital expenditure continues to support activity in the US and parts of Asia, cushioning weaker consumer spending and trade. Q2 data showed modest sequential expansion, with regional divergences including euro-area resilience and Asian moderation. These crosscurrents explain why Polymarket probabilities cluster tightly around the 2.9–3.1% outcomes, reflecting uncertainty over whether the AI tailwind and inventory buffers will fully offset higher real rates and geopolitical risks through year-end.