AI adoption is accelerating. Measurable economic impact lags far behind. This gap is not uncertainty — it is the Solow Paradox in real time. It always closes. But not for everyone the same way.
Data sources (actual): McKinsey State of AI 2023 (33% regular GenAI use), 2024 (65%), 2025 (88%, 6% EBIT impact). Early adoption 2017–2022: interpolated from NBER/Stanford AI Index and McKinsey surveys. Projections from 2026 onward are illustrative, anchored to historical GPT-wave adoption curves (electricity: Stage 4 productivity explosion ~1920, 38 years after Edison 1882; internet: measurable impact ~2005–2010, 14 years after WWW).