"You wouldn't tell a sighted person, 'oh it doesn't matter if you can't read'.  It shouldn't be any different for a blind person."  The ability to read braille can transform the financial and social health of blind people, of which there are 360,000 in the UK according to the RNIB.  That's why an emerging group of social entrepreneurs and activists have made it their mission to reinvigorate what they call "the braille nation".