A real thing is just that which forces the rest of the universe to in some way conform to it; that is to say, if theoretically a thing made strictly no difference to any other entity (i.
In Whitehead's thinking, what could be said about something that has no effect on any other person or object?
if theoretically a thing made strictly no difference to any other entity (i.e. it was not related to any other entity), it could not be said to really exist