Can you name one practical product built on top of ChatGPT? I don't even want to knock the tech, I think they're both fantastic, but blockchain has far more product-market fit than chatbots do. Not only that, but in a world of ever increasing and convincing AI deep fakes, a ledger with built-in cryptographic identity primitives will become increasingly useful for identifying, timestamping, and hashing authentic content in a plausibly neutral way.