I also have RSI and it stops me from being a productive programmer, playing any sort of video game, and completely ruined my life for a couple years. If I get really good sleep I can use the computer for a couple hours without any pain at all but normally I'm relegated to only using my hands for a little bit each day otherwise I'll injure them. I tried using voice to text but then I injured my vocal chords using it. Physical therapy and Rehabilitation is slow and I doubt I'll ever be able to have the full use of my voice and hands again. Having a BCI would improve my quality of life immensely.