This theory has been propped up since the 1950s as scientific fact, and proponents of it point to a series of experiments from the 50s in which some amino acids were successfully synthesized from inorganic compounds. The problem is, some amino acids are not remotely equivalent to the proteins required to constitute even the most basic cellular life, and then, even these proteins fall far short of the wondrous complexity that is a living cell. In fact, the more molecular biotechnology advances, so to does our understanding of how incredibly complex cells are.
Directed panspermia is the theory that an intelligent species intentionally inoculated our planet to stimulate the development of life. (