While I think share of capital is a great metric, there are obviously flaws where it could be going on while everyone's lives improved. Which I think is happening to some extent, but to another extent I think folks lives are getting worse in meaningful ways like portion of income spent on basics like housing.

Are there 2-3 other key well-measured metrics that are as stark and explainable as this one (i.e. not a massive basket of goods) that well captures whether folks lives are improving or getting worse at a basic level?