Reasoning
Advertising revenue for human-authored journalism has already declined substantially—U.S. newspaper advertising fell from ~$49B (2005) to ~$15B (2023), representing a 70% decline over 18 years. The structural shift toward digital platforms (Google and Meta capture ~60% of digital ad spending) and AI-generated content continues accelerating. A further 25% decline from 2025 levels (~$14-15B estimated) by 2029 would mean reaching ~$10.5-11.25B, which aligns with the ongoing trajectory. However, the rate of decline has slowed recently (falling from double-digit annual rates to ~5-8% annually), and some news organizations have stabilized revenue through subscriptions and paywalls, creating a counterbalancing factor that prevents near-certainty forecasting.Key uncertainty
The pace of AI adoption in content generation and whether subscription/membership models can offset advertising declines faster than historical precedent suggests—if 30%+ of major publishers successfully shift to subscription-first models by 2027, the advertising revenue floor could stabilize above the 25% decline threshold.