An incomplete, but useful, model of ethical behavior

I think the 3rd paragraph is inacceptable.

"Good" or "Evil" are things that can only be seen by Humans. They are neither naturally "there" nor intrinsical.

Same with "value" and "harm". Your Model only works when people feel similar to you about whats "harm" and whats "good", thats why it won't be able to scale up.

do whatever you want to do, so long as in doing so you will not prevent anyone else from doing what they want to do, now or in the future.