  One might distinguish aspects of a person's situation that are socially caused from those that are naturally caused. This distinction is evidently rough and needs refinement, but one has some sense of what is intended. That I am unable to run fast or sing a tune on key may be largely due to my genetic endowment, which in this context we may take to be naturally rather than socially caused. In contrast, the facts that given the talents of others and their choices to use them in market interaction, my running ability is nonmarketable but my singing ability enables me to have a career as a professional singer are deemed socially caused. That I have a certain physical appearance is natural (any of a wide variety of childrearing regimens would have produced pretty much this same physical appearance) but that my appearance renders me ineligible for marriage or romantic liaisons is a social fact (social arrangements bring this about and different social arrangements might undo it). Even if my natural physical appearance repels any marital or romantic partners I might seek, society might provide me charm lessons or cosmetic surgery or promulgate an egalitarian norm that encourages the charming and the physically attractive not to shun my company (or institute some mix of these three strategies or some others).