Dr. Michael Newton in his excellent books, these newborn souls will train on special test worlds which are not 'real', but computer generated (holograms) for the young souls to practice in before they are 'let loose' in the 'real' 4% Universe

Normally, as explained by Dr. Michael Newton in his excellent books, these newborn souls will train on special test worlds which are not 'real', but computer generated (holograms) for the young souls to practice in before they are 'let loose' in the 'real' 4% Universe. It's an interesting concept, which gives a hint of the hologramic nature of the Matrix.