According to Leary's Exo-Psychology theory, we have come to a point in human evolution where all the "terrestrial goals" - the most important of which are bio-survival, territorial expansion, national security, technological efficiency, and "consumer-cultural television homogeneity" - have more or less been achieved (cf. NP 142). At the same time, centralized civilization has produced various technologies which seem to "point us upwards away from the heavy pull of gravity." Leary suggests that new developments for space-flight as well as the discovery of psychedelic drugs (which would enable us to experience a world where gravity does not exist, thus preparing us for life in outer space) are an indication that there is a trend in biological evolution on this planet from water, to shoreline, to land, to atmospheric flight (outer space, the "new frontier"). In Leary's Exo-Psychology theory, political and cultural phenomena like war, enslavement, or centralization are seen as "necessary preludes" to the next phase in human evolution which is space migration.

Anyway, why should we migrate to space at all? According to Leary, the main reason for space migration is not overpopulation, or a shortage of energy. In his Exo-Psychology theory, Leary suggests that somewhere in outer space there is a "Higher Intelligence" which, a long time ago, sent a message to our planet in form of the DNA, the genetic code. He writes, "[L]ife was seeded on this womb-planet in form of amino-acid templates designed to be activated by solar radiation and to unfold in a series of genetic molts and metamorphoses"(Info 16). Now what does that mean? It means that actually all life forms on our planet are "alien immigrants from outer space" and that evolution of the various species unfolds according to the same pre-determined plan. According to Leary's Exo-Psychology theory, life is designed to migrate from the "womb-planet" (Leary speculates that there might be other unknown womb-planets with life on it), seek this Higher Intelligence, and try to fuse with "Hir" again.