"My entire life is in ruins."
The first line in Sarah Parcak's new book might come off a bit bleak, but the archaeologist means this literally, not figuratively. In fact, she's found studying thousands of years of human history has actually given her hope, or at least some hope. "Humans are very resilient," she says. "And in spite of all the terrible things that we have done to each other, I think we're 51% good. So I try to hold onto that, especially being the parent of a young child."