Blueprint: how DNA makes us who we are

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One of the world's leading behavioral geneticists argues for a radical rethinking of what shapes our individuality. The key lies in the 1% of DNA that varies among individuals, influencing our intellectual capacity, personality traits like introversion or extraversion, susceptibility to mental illness, and even our morningness. Robert Plomin, a pioneer in behavioral genetics, draws on extensive research to assert that DNA is the most significant factor in determining who we are. While family, education, and environment matter, they are less influential than our genetic makeup. Plomin advocates for accepting children as they are rather than attempting to mold them into specific ideals. He emphasizes that even our choices and life-altering events, such as divorce or addiction, are shaped by genetic predispositions. With advancements in DNA technology, it is now possible to predict an individual's potential from birth based solely on their genetic information. These insights carry profound implications for parenting, education, and social mobility. This transformative work illustrates how the DNA present in the single cell at the start of life can profoundly influence our behavior as adults.