More than 30 years after China instituted the one-child policy to temper population growth, the country's demographics have greatly transformed. Author Mei Fong joins hosts Shannon Bond and Cardiff Garcia to talk about the societal and economic implications of the policy, the subject of her book "One Child". Later, the blood testing device developed by Theranos was expected to disrupt the healthcare sector, but that seems less likely now that it has run into regulatory trouble. FT journalists David Crow and Sujeet Indap discuss. Go to FT.com/alphachat for show notes and links.