This man with ALS is “the first power user” of a brain implant that lets him speak

June 15, 2026
Casey Harrell has had a set of electrodes embedded in his brain for almost three years. Harrell, who has amyotrophic lateral sclerosis (ALS) and is paralyzed, first used his brain-computer interface (BCI) to “speak” sentences with the help of a research team in 2023. Since then, Harrell has clocked thousands of hours of use. He…

The Download: cutting AC emissions, and nature’s drug designer

June 15, 2026
This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. These new solid-state ACs promise a cool future. Scientists aren’t so sure. After three years of record-­breaking heat and another scorcher underway, air-conditioning isn’t going anywhere. That’s good for our health,…