Kylie
Defeater of Illogic
The trajectory and destination of a projectile depends a great deal on circumstances (angle, velocity, gravity, aerodynamics, wind speed...) and yet this does not mean that the physics problem is not objective. It's just more difficult to solve.
You missed my point.
Let's say I had an alternative explanation. Say, magical gravity fairies. And I used my MGF theory to make predictions about where the ball would land, but these predictions were always wrong. I could invoke those excuses, to explain away the errors. No matter what criticism you could present against the MGF idea, I would be able to provide an explanation. But that wouldn't make the magical gravity fairies correct, would it? The magical gravity fairies would be unfalsifiable. There's not a thing in the world that could prove them false.
This is the phenomenon of moral disagreements noted in post #2. Here is what you have argued:
- Morality involves lots of complex variables and circumstances.
- Therefore there is widespread moral disagreement.
- Therefore morality is not objective (or is unlikely to be objective).
This is actually invalid. Disagreement can be a sign of non-objectivity, but disagreement based on the complexity of a problem is not a sign of non-objectivity. It is just a sign that the problem is difficult. The sort of disagreement that flows from difficulty is not an indicator of non-objectivity.
If you gave middle-schoolers the difficult trajectory problem there would be widespread disagreement, but this wouldn't mean that there is no objective answer to the problem.
In my opinion there is widespread moral disagreement because moral philosophy is difficult and because expertise in this field is often neglected. These are reasons to maintain the possibility of objective morality, not to exclude it.
But the big difference is that if you gave the trajectory problem to people, they could make mistakes due to the complexity, but then others could say, "You made a mistake in this part," or "You forgot to account for the rotation of the Earth." And the other people would say, "Oh, so I did."
This does not happen in morality because there are no objective facts that can be shown.
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