[vannevar]

True, but the parents in the story are imaginary---their decision-making is not being tested. Rather, it's the observer who is being tested. But the story is so contrary to experience that is does not do what the premise of the article suggests it does: distinguish observers that care more about equality than utility. Because the premise is flawed (ie, that this is a valid test), it tends to moot the rest of the article drawn from that premise.