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you need fast refresh speed with pins which are steady under pressure while reading. Also, it should be packed so that you can have 6/8 pins to form a braille cell. the rest is a breeze.

personally, I think that braille is just not worth it for normal reading, but you can't do any stem without it because math is not linear like normal text and tts just sucks.

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I met a blind person studying computer science. I asked him why he used a speech synthesiser instead of a Braille display and he replied that he'd love to have a Braille display but they are far too expensive for a mere student.

(The sounds that emerged from his speech synthesiser didn't much resemble human speech but he was used to it and it was obviously quite a lot faster than normal human speech.)

The speed is something that one gets used to.

I just learned that several mathematical notations exist for Braille:

https://chezdom.net/mathematicalbraillecodes/

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