Researchers at Meta, the parent company of Facebook, are working on a new way to understand what’s happening in people’s minds. On August 31, the company announced that research scientists in its AI lab have developed AI that can “hear” what someone’s hearing, by studying their brainwaves. While the research is still in very early stages, it’s intended to be a building block for tech that could help people with traumatic brain injuries who can’t communicate by talking or typing.