In summary, my experiences with the Braille Companion have been very positive, and the people to whom I've demonstrated it have been quite impressed. She composed this review using a Braille Companion. The value of one sense over another depends on why a particular sense is needed and how that sense is applied. However, if we look deeper, we see that the debate between braille and speech is actually over which medium is the best alternative to sight. Multiple disabilities I have friends with diabetes who have developed neuropathy, which diminishes a person's tactile sensitivity.
Braille is nearly impossible for a person with neuropathy, so speech is by far the best alternative.
I also have friends to whom speech is absolutely worthless because they are totally deaf and totally blind. Braille is truly the best alternative for these folks. Just as stereoscopic vision is important for depth perception in a sighted person, stereophonic audio is necessary to locate the source of a sound for a blind person. If a blind person is hard of hearing in only one ear, targeting the source of a voice can be extremely difficult without some physical contact. The cognitive process of thinking takes place in the cerebral cortex.