The transfer of human minds to a fully computer-simulated virtual world seemed to be the greatest scientific feat to be overcome in order to proceed to "the Great Sleep". However, the solutions were quickly found thanks to decades of research on information processing and the virtualization of human intelligence.

The main challenge was not to transfer the soul but to store the body ... The promise of regaining an unaltered body after "the Awakening" was essential but when the time came, the mass production of the most successful Sleep pod prototype was launched, without scientific data being able to ensure that the promise would be kept.