Ways to Say "Should"
There is good reason to believe that moral entities do not exist objectively, because it is a matter of empirical fact that people disagree about them in a way that they do not disagree about physical reality.
There is good reason to believe that moral entities do not exist objectively, because it is a matter of empirical fact that people disagree about them in a way that they do not disagree about physical reality.
Recent studies increase our understanding of the complexities and the speed of evolution.
Initially we can say that a sentient being is one that is alive and is conscious of its environment. This definition excludes robots and other machines that detect changes in their environment and respond to them but, we assume, are not conscious. But what is it to be conscious?