Monoculturalism in Trek

One of the many strengths of Star Trek - the diversity of alien cultures in strange, new worlds - can also be its weakness. Why don't Vulcans, Ferengi, and other species have the same variety of people and beliefs that humans do? And how interesting is human society cutlure as a whole? And what species are accepting of change and welcoming new civilizations? The trio delves into these issues and more.

Which alien race had the most diversity? #AskCA3