"We do not now change our definition of life so as to accommodate Q, the black cloud, or other examples of “weird” life from Hollywood because we do not constructively believe that this kind of life is possible." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3005285/
Defining Life
Any definition is intricately connected to a theory that gives it meaning. Accordingly, this article discusses various definitions of life held in the astrobiology community by considering their connected “theories of life.” These include ...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3005285/
