The Scripture Is False And The Biblical God Is Dead.

[awty]

blindsight was introduced to modern medical science by police detectives who felt they had good reason to believe some people who use medicalily certified blindness as alibi were, in fact, not blind, because they were observed to be able to walk along obstacle laden path without a walking cane

Someone once asked the late, great Ray Charles how he was able to get about with no cane. His answer was hard-soled shoes. He was able to hear echoes from obstacles, provided he was walking on a hard floor.

Boru

My aunt has never used a cane.  But watching closely, you will see her hold one finger up to her side, running it along the walls when inside.  My cousin (her son) was surprised I had noticed that as it's not terribly noticeable.