AI-powered brain emulation is changing our definition of death

Our definition of death is changing. Until the concept of brain death was realised in the 20th century, death was primarily presumed upon the absence of a pulse and breathing. Prior methods for detecting the presence of a heartbeat were not well founded and not always effective. This led to some rather strange additional criterion. In the 18th century for example, a variety of odd methods were engaged to hopefully determine if someone was dead.