But, on a long enough time horizon – at least more than several decades anyways – it's not true that the poor have gotten poorer. It's not even obvious that th

But, on a long enough time horizon – at least more than several decades anyways – it's not true that the poor have gotten poorer. It's not even obvious that the rich today are relatively wealthier than in the past because, e.g. there's no obvious way to compare having running water and owning an iPhone to being the highest status person in your area and owning lots of slaves.