Genetic influence on traits like IQ is substantial, with twin studies indicating a 50% genetic component. Kian Sadeghi, CEO of Nucleus Genomics, clarifies that embryo selection involves reading DNA, not editing it, a critical distinction in reproductive technology discussions.

Sadeghi emphasizes that genetics plays a significant role in societal traits, challenging purely environmental explanations. He contrasts this with historical eugenics, an ideology that sought population control without a foundational understanding of genetics, leading to destructive practices like forced sterilization.

The notion of a "best embryo" in IVF is misconstrued, as Sadeghi points out that virtue is independent of biological characteristics. Parental choices in embryo selection are based on personal preferences, not objective measures.

Furthermore, conditions like schizophrenia have a strong genetic basis. Sadeghi asserts that the decision to screen embryos for genetic conditions should ultimately rest with the parents, navigating complex ethical considerations and personal values.

Understanding the genetic underpinnings of various traits requires acknowledging both genetic and environmental factors, separating legitimate scientific inquiry from historical misuse of genetic concepts.