I have an odd parallel to this. When I was younger, I was simultaneously learning braille and also spending a lot of time playing steel-string acoustic guitar (

I have an odd parallel to this. When I was younger, I was simultaneously learning braille and also spending a lot of time playing steel-string acoustic guitar (formerly played a nylon string guitar). Unsurprisingly, I found it significantly more difficult to "read" braille with my left hand because the calluses from playing guitar had reduced the tactile sensitivity in my fingertips.