Iterated embryo selection (IES) is a reproductive technology that involves repeated cycles of in vitro sequencing and selection of embryos. Because it compresses multiple generations of selection into a fraction of one human maturation period, IES could theoretically increase heritable traits by several standard deviations in a relatively short period of time. In its current form, the technology was first described by Carl Shulman in 2009 (Shulman 2009), and the idea was further developed in a 2014 paper by Shulman and Nick Bostrom (Shulman & Bostrom 2014).