Two siblings can grow up under the same roof, with the same parents, rules, and routines — yet leave childhood with entirely different emotional worlds. One may remember warmth and safety. The other may remember tension, loneliness, or fear. This difference is often dismissed as exaggeration, selective memory, or personality. In reality, it is the predictable outcome of developmental neuroscience. Children do not experience family life objectively. They experience it through a nervous system that is constantly asking one core question: Am I safe? Same house does not mean the same childhood A home is not experienced as a neutral environment. It is filtered through stress levels, attachment signals, and emotional availability. Children do not record events like cameras. They encode experiences through physiological states — safety, threat, connection, or abandonment. As Gabor Maté often emphasizes, what shapes development is not the event itself, but how it is encod...