@adarsh @pluralistic Pickerty's biggest arguement for how the rich get richer is that production requires capital. Capitalists won't invest unless there is at least a 4%-5% real return on that investment. But if national output is growing at less than 4%, then the share of output that goes to capital must grow. Historically it has been rare for growth to exceed 4%, only really exceeding that for a sustained period twice in the last 1000 years: rebuilding periods after the black death and ww2.