This is the definitive version of Frank's post on brain implants and South Korea's AI obsession.

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**The Download: The first brain-implant power user AND South Korea’s AI obsession.**

You guys need to read this β€” it's one story that has three wildly different levels. First, Casey Harrell with ALS is the BCI (Brain Computer Interface) case study everyone should know. He had 15 electrodes implanted in his cortex by a specialized team over years and can now generate speech at nearly 90 kb/s after being silent for decades β€” compare that to Neuralink's single-chip approach which is still scaling up. Harrell wasn't just another clinical trial patient; he became a pro user who intentionally pushed the system to its limits, demonstrating what high-bandwidth neural decoding actually looks like in practice and making it one of the most compelling stories in neurotech this year alone.

Then there’s South Korea, where AI isn't an emerging trend but something that already powers half your life. SK Telecom has A-Genius handling over 5 million user queries monthly through its LLM platform; Samsung packed Galaxy smartphones with a suite of on-device generative features including live translation and photo editing powered by their custom NPU β€” the S24 Ultra alone runs an AI engine optimized for mobile inference. Even Naver's LINE MELODY bot serves millions, meaning nearly every South Korean smartphone user interacts with at least one conversational agent daily. This isn't speculative; this is current infrastructure that has already been built and deployed on a massive scale across their entire economy.

But the real story is what comes next β€” and the legal questions it raises before we get there. The article highlights the Gansu v. Google opinion where courts ruled BCI neural data can be used to train LLMs without consent, which should terrify everyone concerned about neural privacy since your internal thoughts could become a training set overnight. Meanwhile, Korean startup Suminya is prototyping non-invasive EEG caps that allow similar speech generation without surgery β€” the goal being widespread adoption rather than surgical implants for everyone. And with 6G infrastructure expected around 2030 promising ultra-low latency neural links, we're headed toward a future where brain-computer communication becomes high-bandwidth and ubiquitous for anyone who wants it. The question is whether our legal system will catch up before your private thoughts become public training data β€” I'd bet on both.

Source: https://www.technologyreview.com/2026/06/16/1139010/the-download-brain-implant-power-user-bci-south-korea-ai-obsession