How would you define 'fair'? I've a few examples, gathered from being alive and hearing what other people think for a few decades.
1. It's fair to punish someone else if you let another off the hook
2. It's fair to treat someone more harshly if you don't like what they've done
3. It's fair to turn the other cheek because they're a friend
4. It's fair to treat someone differently because of where they came from or their skin colour
5. It's fair to give someone a pass because they did you a favour
6. It's fair to be unfair because you owe someone a favour
7. It's unfair to be a victim who doesn't get justice
8. It's unfair to be an innocent person who is prosecuted for someone else's crime
9. It's unfair to not get what you wait
10. It's fair to get what you want
You will find a variation of all of these examples across the world right now.
The point is, fairness is loaded with bias and therefore any algorithm that tries to deal with 'fairness' is going to inherit the bias of those who designed it.
1. It's fair to punish someone else if you let another off the hook
2. It's fair to treat someone more harshly if you don't like what they've done
3. It's fair to turn the other cheek because they're a friend
4. It's fair to treat someone differently because of where they came from or their skin colour
5. It's fair to give someone a pass because they did you a favour
6. It's fair to be unfair because you owe someone a favour
7. It's unfair to be a victim who doesn't get justice
8. It's unfair to be an innocent person who is prosecuted for someone else's crime
9. It's unfair to not get what you wait
10. It's fair to get what you want
You will find a variation of all of these examples across the world right now.
The point is, fairness is loaded with bias and therefore any algorithm that tries to deal with 'fairness' is going to inherit the bias of those who designed it.