From the D.H.C's lecture, what do we find out about the world of A.F. 632?

The D.H.C. takes a group of students on a tour of the facilities at the Central London Hatchery and Conditioning Center. The students view various machines and techniques used to promote the production and conditioning of embryos. The scientists take an ovary, remove and fertilize the eggs, force the eggs to bud up to ninety-six times, and subsequently grow the embryos in bottles. Predestinators then decide the future function of each embryo within the society, essentially assigning a future job to each human.

The society contains a five-tiered caste system that ranks Alphas and Betas on top. Only the Alphas and Betas come from single eggs that are not budded and hence have no twins. The Centre conditions all the non-Alpha and Beta embryos for their future status in society by dividing them into Gammas, Deltas, and Epsilons. Thus, the Alphas represent the intellectually superior group, followed by the Betas, and continuing down to the Epsilons, who have little to no intelligence.