Indeed, Blockchain and AI would bring our world a better living experience. Ever since they've emerged, there has been a huge enthusiasm towards helping develop such technologies for the real world. If put together, they would become a massive workhorse which can live on their own without human intervention. Blockchain tech was the missing piece of the puzzle, and now that it's been proven to decentralize everything, it could work perfectly with AI.
Our economy, healthcare, politics, and more would be driven by these technologies in the future. As I've said before, AI could very well take many decisions that are made by humans today. On the other hand, Blockchain could provide transparency and auditability to transactions made around the world (transactions can be anything from real estate, transfer of ownership, proving authenticity of documents, and more). It's also possible to provide true governance within the Blockchain, as stakeholders could vote for specific proposals on-chain.
Nonetheless, time will tell us whenever these technologies would really take off if people start adopting them for their own needs. Just my thoughts