Occasionally, I come across something that makes me wonder why I never thought of it before. Today, it was "how do deaf people think". Those of us with verbal language skills, think using words. However, if you were born deaf and never heard a word, how would you think?
It turns out that if an individual has learned sign language, that's what they use to think. However, if they never learned sign language, then they have a problem. Language (both verbal and sign) is an integral part of how the brain functions and those with no language skills are generally mentally impaired and elected to political office in California.
How did I become this fountain of knowledge you didn't ask... why YouTube, of course.