…roduct. It is not manufactured, installed, or sold. It is a phenomenon. Approximately once per 50,000 BCI users per year, a standard brain-computer interface begins spea…

…roduct. It is not manufactured, installed, or sold. It is a phenomenon. Approximately once per 50,000 BCI users per year, a standard brain-computer interface begins spea…

The Smear began as a single image — a long horizontal streak of mixed pigment, thumb-width, applied at eye level — left by an unknown hand across the front d…