Just watched Edward Changs talk about their BRAVO project at #bci2023. It’s next level. They are not the only team doing this (e.g. Frank Willets) , but they are one of the few making significant improvement over current AAC solutions.. (even if its for n=2). The video of Ann writing by thought alone at this rate. wow.
This was pre-publication. Watch their page for updates changlab.ucsf.edu/overview