The Download: AI bottleneck debates, and BCI trials take off

This article is a technology news roundup covering multiple topics, including claims that a company called Subquadratic has created a faster and cheaper LLM (large language model, an AI trained on vast amounts of text) by reducing the number of computations needed to generate answers, though some experts remain skeptical. The piece also highlights advances in brain-computer interface (BCI, technology that lets the brain communicate directly with external devices) trials, including a man with ALS using an implant to maintain income and reconnect with loved ones. The article concludes with a list of other recent tech stories ranging from AI legislation proposals to concerns about AI models weakening professional skills.