It sounds like her brain is more so controlling a mouse that's clicking each letter of a keyboard. More or less anyway. It's not just straight up transcribing her stream of thoughts automatically

People with disabilities like this usually have some way of communication - think Stephen Hawking and his speech synthesizer that was wired to respond to minute muscle movements. So there's a way to communicate with them - but it's difficult and incredibly slow.

Those experimental brain implants? They have the potential to enable people with those issues to use a speech synthesizer reasonably fast, drive a wheelchair, or use a smartphone or a PC about as fast as you and me would.

Of course, it's still an early tech. It's unstable, the implants don't last and a lot of the uses are still being figured out. But if the core issues are resolved, it's going to be a game changer for many people with disabilities.