> According to this view, justice demands that variations in how well-off people are should be wholly determined by the responsible choices people make and not by differences in their unchosen circumstances. Luck egalitarianism expresses that it is a bad thing for some people to be worse off than others through no fault of their own.

When I see this line of reasoning, it leads me down the road of determinism instead. Who is to say what determines the quality of choices people make? Does one's upbringing, circumstance, and genetics not determine the quality of one's mind and therefore whether or not they will make good choices in life? I don't understand how we can meaningfully distinguish between "things that happen to you" and "things you do" if the set of "things that happen to you" includes things like being born to specific people in a specific time and place. Surely every decision you make happens in your brain and your brain is shaped by things beyond your control.

Maybe this is an unprovable position, but it does lead me to think that for any individual, making a poor choice isn't really "their" fault in any strong sense.