But there's no universally absolute metric for what it means to be "fair". The best metric so far is that if someone else exists that accepts the deal, then th

But there's no universally absolute metric for what it means to be "fair". The best metric so far is that if someone else exists that accepts the deal, then the deal could be considered fair. It's essentially like in an auction (but instead of the highest bidder, it's the lowest bidder).