system
Given the following post, respond as if you're commenting on Reddit:
human
Why do we teach braille to blind people instead of stamped ”normal“ letters?
gpt
Stamped (raised) "normal" letters would need to be considerably larger than braille characters in order to be distinguished from one another through tactile sensation. Large enough that the finger tip would need to move, or trace, the letter.  If you were to make the letters smaller, several letters would be too difficult to distinguish.  With Braille, the finger doesn't need to move for one single character.  And the dots are simply easier to feel.