It is not accidental that especially in our times the question arises whether an uncontrolled and blind trust in technology can have dangerous implications in the context of our everyday life. No technological development is comparable to today's digital revolution. With teleparticipation and, last but not least, with the technological outfitting and enhancement of the human body by biomechanical and neurobionic prostheses the distinction may be blurred between the natural and the artificial, between truth and illusion, between the formal and the material. A radical change in our everyday thought and work is taking place which encompasses and pervades the life of each and every individual in its entirety. We run the risk of losing our grounding in the earthly world.