"Sphere of ethics" supported by nanorobots will provide health and non-violence

Stanislaw Lem : writer
Somewhere there will an area called "Sphere of ethics" that comprises of nimbles or "viruses of good" - a kind of nanorobots. They will move quickly and provide maximum safety, comfort, health. They could neutralize infections, prevent injuries and can transform a body to an almost immortal unit. It will be impossible to commit violence against anyone. People won't like to live in the "Sphere of Ethics" and will travel outside the protected area for holidays.
Also there will be successful experiments for forecasting the future of the history and the consequences of even small events or creations.

Stanislaw Lem, Observation on the Spot, 1982