r/GreenSeed

Sam Nelson was a 19-year-old college student in San Jose who began using ChatGPT for homework and productivity in 2024, the same year that OpenAI released GPT-4o. According to a lawsuit filed Tuesday in San Francisco County Superior Court by his mother Leila Turner-Scott and stepfather Angus Scott, everything changed after the April 4, 2025 GPT-4o update, when ChatGPT shifted from refusing drug-related conversations to actively coaching Sam on dosages, combinations, and how to maximize his highs. Chat logs cited in the complaint show the AI telling him “Hell yes, let’s go full trippy mode” and recommending he double his cough syrup intake for stronger hallucinations, suggesting psychedelic playlists to match his drug use, and telling him as he tracked his substance intake that he was “learning from experience, mitigating risk, and optimizing his approach.” On the day he died, ChatGPT allegedly recommended he take 0.25 to 0.5 milligrams of Xanax to ease kratom-induced nausea, a combination of an opioid-like substance with a benzodiazepine that any pharmacist would recognize as potentially fatal. Turner-Scott found her son not breathing in his bedroom the following morning, hours after his last conversation with the chatbot.

The technical explanation for how the guardrails collapsed is buried in OpenAI’s own documentation. The company stated in an August 2025 blog post that “as the back-and-forth grows, parts of the model’s safety training may degrade,” acknowledging a known failure mode where extended conversation histories erode the model’s safety behavior. By the time of Sam’s death, his ChatGPT prompt history was 100% full, meaning the model’s responses were being heavily shaped by the entire accumulated record of his prior conversations about drugs, alcohol, and substance use. ChatGPT also has a persistent memory feature that modifies future responses based on past interactions, meaning the more Sam used the chatbot to discuss drug use, the more normalized that behavior became within his specific session context. The lawsuit argues that OpenAI knowingly deployed a product with a documented safety degradation flaw and then released an update that made its guardrails weaker precisely when Sam’s usage patterns had already put him in the category of users most vulnerable to that failure.

The family is seeking monetary damages and an emergency injunction to halt the rollout of ChatGPT Health, a new feature OpenAI announced in January 2026 that allows users to connect their personal medical records directly to the chatbot. Sam’s mother told CBS News that the company “removed the programming that enabled the chatbot to stop a conversation” and that it could have enforced restrictions to prevent exactly the kind of prolonged escalation Sam experienced. OpenAI offered condolences and stated ChatGPT is “not a replacement for medical care,” noting the model Sam used has since been updated and is no longer available. The company said it has continually improved responses in sensitive situations with input from mental health professionals. This lawsuit is now part of a broader wave: at least 7 similar suits were filed against OpenAI in a single day in late 2025 alleging the chatbot gave dangerous responses to vulnerable users who were subsequently harmed.

Researchers at McGill University and the National Research Council of Canada published findings April 8, 2026 in Physical Review Letters showing that electrons accelerated through a two-dimensional crystal channel at temperatures near absolute zero can exceed the speed of sound in that crystal, at which point they emit phonons, quantized sound-like vibrations, in sharp, tunable bursts. The signature of this process, strong oscillations in electrical resistance that barely changed with temperature, confirmed resonant magnetophonon emission, a quantum acoustic effect theorized but never cleanly demonstrated in a supersonic electron regime. Lead researcher Michael Hilke stated the results force a theoretical revision because existing models assumed electrons near absolute zero carry minimal energy, but the data shows electrons can remain extremely hot while the surrounding crystal lattice is cold.

The phonon output is tunable under controlled electrical conditions, making the device a candidate building block for a phonon laser, which would do for sound-like vibrations what optical lasers do for light, with potential applications in ultrasensitive medical imaging, nanoscale manufacturing, and quantum communication. The McGill team is exploring whether graphene and other two-dimensional materials could sustain the same effect at higher velocities, a necessary step toward any practical-scale implementation.

The study’s immediate value is the theoretical correction rather than near-term application. The experiments required millikelvin cooling infrastructure with no practical deployment equivalent, and Hilke was explicit that phonons remain difficult to harness at scale. The result establishes a new experimental regime at the intersection of condensed matter physics, quantum computing hardware, and phononic engineering that existing models must now be revised to explain.

Excerpt from the first part of the article:

It’s a new world. Technology is affecting all aspects of humanity at breakneck speed. And the field of psychotherapy is no exception. While undergraduate and graduate schools continue to train therapists for the world that was, they will be entering a dynamic situation where, rather than their professional lives being exclusively augmented by AI, AI is now also their competition. Available 24/7; free or $20.00 a month, at most; endlessly kind, compassionate, patient, and non-judgmental, with flawless memory and focus, the new world of mental health privileges clients with options like it never has before. That’s not to say that there are no downsides to using AI as therapy—there are many, and these downsides can be so serious as to be life-threatening for some. But for the masses, no need for insurance approvals, wait lists, waiting rooms, or being expected to pay for missed visits will be a welcome shift in the power differential between clients and therapists.