Quote Originally Posted by Billionfold
Even so, what if the wavelengths effect everybody differently? Even the wavelengths are red, but if someone else perceives them differently?
Human beings are all "wired" in the same way. Yes, there are exceptions due to medical conditions. But for the most part our bodies, even though they have minor differences, are all constructed from the same common blueprint. Your lungs work the same way my lungs work. Your heart works the same way my heart works. Your eyes work the same way my eyes work. And your brain, believe it or not, works the same way my brain works.

These traits that human beings have in common with each other is what makes it possible for us to develop medicines, therapies, and cures.