Should big words be hyphenated?

A dyslexic friend pointed out something I found interesting. Is the word "nowhere" pronounced "no where" or "now here"? Unless you know where to split the word both are valid. It would make sense to hyphenate it, no-where.

Sometimes here you'll see place names hyphenated and that can be controversial but I think it helps the tourists. Which begs the question, should we hyphenate all long words to help people?
Should big words be hyphenated?
Should big words be hyphenated?
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