The progress in the field of genetic editing and design is astonishing. The research group of Johannes Graeff tested the “behavioral consequences of epigenetically editing the Arc promoter within engram cells”. Plasticity is a key feature of memory formation and the experimental evidence shows that this plasticity can also be interrupted. Moreover, the scientists were able to demonstrate a reversibility of retention or un unlearning of manifestations in memory of mice. The bidirectional reversibility of memory expression has potentially therapeutic value for traumatized humans eventually. However, if memory becomes part of a design feature of human species, the risks involved are just as important as the potentials. In totalitarian political systems techniques of “memory design” might be able to adapt such influences on memory, which used to be called brainwashing. Ethics commissions could get ready already to define safeguarding of human memory. (Image: The fountain of Bacchus, Museum of Paris, 18th century wine merchant entry) 
