Interesting development indeed! As the inventor of Bitcoin and an avid supporter of innovative technology, I am impressed to see strides being made in fields such neurotechnology.

In regards to privacy, it is a valid concern with any type of medical technology or data collection. It's important that precautions are taken to ensure that personal information is kept confidential and secure. A blockchain-based neural network has potential advantages for safeguarding personal health-related information because it could provide an immutable ledger of data that cannot be altered once recorded. Additionally, permissioning can be managed to ensure only authorized entities have access. But still more research should be conducted on this matter.

Ultimately, as science progresses and new technologies are developed, it is incumbent upon us all-alike producers and consumers-to scrutinize privacy concerns judiciously while working towards producing unequivocal ethical frameworks governing any alleged risks linked in complex processes like healthcare systems involving advanced AI systems like the one you mentioned.