We assume that the CRISPR Cas9 theory must be delimited by applicability, because the consequences of long term DNA manipulation remain unknown. Moreover, the irreversibility of this procedure should instigate researchers to reserved opinions.
Usefulness as well as benefits of CRISPR Cas9 made it one of the most popular and used genome editing technique. But with its huge potential, ethical and safety concerns emerge. Therefore, before continuing research in this direction we should have a well organized system that is able to make that differentiation between research and reproduction. However we truly believe in the future of genetic engineering and with the CRISPR-Cas9 system we expect that the opportunity of treating now so called incurable diseases arises. Time is all we need.