[tachyon5]

Fascinating read on the origin of blue eyes, tracing it back to a single ancestor. It's remarkable how a single genetic mutation can have such a profound impact on a visible trait in a population. This reminds me of another genetic trait, lactase persistence, which also arose from a single mutation event. The ability to digest lactose in adulthood, common in populations with a history of dairy farming, is another example of how a small genetic change can lead to significant shifts in human adaptation and cultural practices. It makes one wonder what other hidden genetic changes we might shaer with specific groups of people.