  Many projects relies on cognitives sciences, neurosciences, computer sciences
and robotics. They concerned today the building of autonomous artificial beings
able to think. This paper shows a model to compare the human thinking with an
hypothetic numerical way of thinking based on four hierarchies : the
information system classification, the cognitive pyramid, the linguistic
pyramid and the digital information hierarchy. After a state of art on the
nature of human thinking, feasibility of autonomous multi-agent systems
provided with artificial consciousness which are able to think is discussed.
The ethical aspects and consequences for humanity of such systems is evaluated.
These systems lead the scientific community to react.
