&gt; Your hypothetical situation depends on the dimension of time<p>So do you include the future and the past? If you include the future it is extremely difficult, if not impossible, to determine the universality of a principle. If you don&#x27;t include the future, that means that it is possible for the universality of a principle to change. Then As soon as one person is born who doesn&#x27;t share a principle, the moral character of that principle vanishes?<p>I&#x27;m not what point you are trying to make by bringing in the concept of the perfect circle. I don&#x27;t see at all how this relates to morality. The concept of a perfect circle is not universally shared currently, and certainly isn&#x27;t historically shared universally. Even if that concept were universal, it would not make imperfect circles immoral.