Daniela Wei K Oanh Ha Kristen V Brown Bloomberg

Months after his daughter's birth in 2017, Chris Jung dropped off a test-tube of her saliva to his company's genetic testing lab in Hong Kong. He had grand ambitions for the baby, and was seeking clues to the future in her DNA. She might become a prominent professional, he thought, possibly even a doctor.

Months after his daughter's birth in 2017, Chris Jung dropped off a test-tube of her saliva to his company's genetic testing lab in Hong Kong. He had grand ambitions for the baby, and was seeking clues to the future in her DNA. She might become a prominent professional, he thought, possibly even a doctor.