In the US alone, 2 million people make use of assistive devices for their communication needs,
so called Alternative and Augmentative Communication devices.
We believe Brain-Computer Interfaces can drastically improve AAC quality.
A BCI can bypass broken muscles and neural circuitry and is thereby suited for those who suffer the most severe impairments. 
By relying on imagined speech, which is the imagining of articulatory movements rather than performing them, has the benefit of being more intuitive and portable.