Reasoning
AI-generated or AI-assisted books are already appearing in commercial markets—Amazon reported over 200 AI-generated titles uploaded daily in 2023, and several AI-written works have achieved modest sales rankings. Major publishers (Penguin Random House, HachetteBroadcasting) are actively investing in AI tools for editing and marketing. With 5+ years until 2029, the threshold is relatively low: reaching *a* bestseller list (not necessarily #1 on major lists, but category-specific or regional lists) becomes probable given exponential growth in AI capability, declining stigma around AI authorship, and publishers' strong financial incentives to test this space. However, significant uncertainty remains around whether "major publisher" involvement will materialize versus remaining concentrated in self-publishing platforms, and whether bestseller list criteria will be tightened in response to AI content concerns.Key uncertainty
Whether major US publishers will formally claim AI authorship in marketing/publishing credits, or whether AI-assisted books will be positioned as human-authored, which affects whether such publications would count as "AI generated" under the resolution criteria.