On March 18th, Facebook Reality Labs Research announced some of their research into next-generation neuromotor input devices for mixed reality applications. I paraphrased the most interesting insights from their press conferences announcement, but I was still left with a lot of questions on the specific neuroscience principles underlying their ability to be able to target individual motor neurons. I also had a lot of follow-up questions about some of the privacy implications of these technologies, and so thankfully I was able to follow up with Thomas Reardon, Director of Neuromotor Interfaces at Facebook Reality Labs and co-founder of CTRL-Labs to get more context on the neuroscience foundations and privacy risks associated with these breakthrough ‘adaptive interfaces.’