> So the early 19th-century world contained 128 random strangers going about their lives, each of whose genes makes up 1/128th of who you are today. That sound

> So the early 19th-century world contained 128 random strangers going about their lives, each of whose genes makes up 1/128th of who you are today. That sounds completely wrong to me. Aren't most genes the same across all human beings?