The microtubule-associated protein tau deposits into β-sheet-rich amyloids in over 25 neurodegenerative diseases commonly referred to as tauopathies that include Alzheimer’s disease (AD), Corticobasal degeneration (CBD), Picks disease (PiD), and Chronic traumatic encephalopathy (CTE)1–3. This evidence concerns the gene MAPT and red-green color blindness.