<human>: Can you provide a brief rundown of the text in within 3 sentences?

In what began as a discussion on moral relativism, my roommate and I have reached an impasse. It seems that we differ greatly in our ideas of what morality is and how it relates to the concepts of good and bad.

I believe that with sentience, you have self-interest and therefore a perception of good and bad as it relates to you or other things you can relate to. Within that I believe there is a realm of morality where we can attribute the adjectives good or bad to actions and intentions of ourselves and others. Therefore, I think morality is a subset of good and bad.

He believes that all things good and bad are within the realm of morality, and both concepts rely absolutely on each other to exist. Therefore:

- if the sun were to explode tomorrow and kill us all, that would be morally wrong. I say it would simply be bad relative to me, but not immoral. 

- That the dinosaurs are (largely) extinct is morally bad for them, and since we benefit with oil, for us that same event is morally good. I say it's just bad for them, good for us - again, nothing to do with morality.

It came to the point where I told him he needed to research the concept of morality and he'd see where his error was. He said morality is subjective and is defined differently from party to party, as with the dinosaurs. I said what the word defines is subjective, but the definition itself is absolute. I looked it up on a few sources and read it off to him. He said: "Bringing in the dictionary is just bringing in a third opinion. The dictionary is not the authority on the meaning of a word." He quoted a book called "Death of the Author" and basically argued that language is too ambiguous to be a basis for an argument.

It spiraled on from here and neither of us will budge. Who's correct, if anyone? Because I *reeeeally* think it's me.
<bot>: I think that for an event to have a moral element it must involve action and intent while my roommate think morality is involved in all things that can happen to the party involved. Who's correct?