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🏥40 Million People Use ChatGPT for Healthcare Help

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Neuralink specializes in building BCIs, which establish seamless digital pathways between the human brain and external devices. In simple terms, they translate thoughts into actions. Imagine moving a robotic arm just by thinking about it.

In June 2025, Neuralink raised a $650 million Series E funding round at a $9 billion valuation after successfully installing a seventh N1 Implant. Designed as a coin-sized device, it rests beneath the skull and contains flexible threads that insert into the M1 to interpret neural activity: the raw signals that carry information about everything we see, feel, touch, or sense.

Noland Arbaugh, a 29-year-old man who suffered a severe spinal cord injury that left him paralyzed below the shoulders, became the first recipient of the N1 Implant. When he thinks: “Move the cursor right!” tiny electrical signals are sent across neurons. ML algorithms are trained to recognize patterns in these tiny electrical signals and translate them into computer commands.

These biomedical breakthroughs are enabling us to transcend the boundaries of our bodies and compensate for lost biological function through engineered means.

BCIs represent a fundamental shift in how humans interact with the digital world, enabling direct communication and instant control through thoughts alone.

More than 40 million people worldwide turn to ChatGPT every day to navigate notoriously complex healthcare systems. In particular, nearly 2 million logistical inquiries are asked each week about the U.S. health insurance system, including handling claims and billing, as well as exploring eligibility and enrollment.

About 3 in 5 Americans say they’ve used conversational chatbots for their health or healthcare in the past three months. In underserved rural communities defined as “hospital deserts,” ChatGPT processes an average of nearly 600,000 healthcare-related questions each week.

About 7 in 10 medical-related conversations with ChatGPT take place outside typical clinical availability, suggesting people are looking for information when they can’t readily access their healthcare providers.

In the U.S., the healthcare system is a pain point for many Americans. The public perception of U.S. healthcare quality has sunk to a 24-year low, with Americans rating access a C+ and costs a D+.

Matt Rosenberg (i.e., @nthmonkey) received a roughly $195,000 medical bill categorized into vague buckets. So, he requested an itemized bill with CPT codes. Using Claude to analyze the confusing medical jargon, he found clinical supplies marked up between 500% and 2,300%. Ultimately, he settled for roughly $33,000, about 83% off the original charges.

Cambium landed a $100M Series B for advanced materials production.

LMArena closed a $150M Series A to evaluate frontier AI models.

xAI raised a $20B Series E to understand the nature of the universe.

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