Directed Panspermia

Francis Crick and Leslie Orgel's 1973 Icarus (19:3) paper proposing that life on Earth was deliberately seeded by an extraterrestrial intelligent civilization. Crick (Nobel-laureate co-discoverer of DNA structure) and Orgel advanced it as a serious scientific hypothesis addressing the universality of the genetic code and other features. The principal contemporary scientific framework overlapping with the Cosmic Chain's directed-creation premise.