This Hacker News thread discusses a proof-of-concept neural brain implant that provides speech. Users express concerns about intentionality, wondering if the device could trigger unintended speech based on inner thoughts. Some speculate on the nature of consciousness and whether we are always in control of our actions. Others delve into the technical aspects, questioning how these devices are built and the challenges of creating a reliable neural-computer interface. The accuracy of the current technology is debated, with one researcher noting a significant error rate, making it unsuitable for open conversation. The conversation veers into futuristic possibilities, including telepathy, brain hacking, and the merging of humans and AI. Concerns arise about privacy, security, and potential misuse of such technology, including the injection of ads or government surveillance. Some users ponder the implications of brain-to-brain communication, including the standardization of neural "languages" and potential vulnerabilities to psychic attacks. Humorous tangents about whales with brain implants and techno-slavery also emerge.