You do know that synesthesia is not an ordinary condition, right? It’s a problem with the brain wrongly interpreting signals that it receives from various parts of the body.
Nice to see you’re doing the research, though. Look it up in YouTube, there are some good videos there.
Thank you, but don’t be so quick to call it out-of-the-ordinary. Research in these areas — including perception of colors — is new. What imaging technology allows. I suspect — just speculating at this point — that everyone has some degree of synesthesia, and it’s more subtly entangled than can be appreciated in today’s culture.
bvw is making a straw man, while avoiding the question I asked him several times: what does Wisdom look like? I have yet to get the answer which study was done specifically on this subject. And now he is reaching for neurological disorders to "prove" he is right.