We can have equality of economic development, but not both. No society can develop while retaining equality throughout its culture. Equality requires we ignore every possible cause of differentiation. The culture must postulate that there is nothing that justifies one person being different from another. Society must decide no ability, or capacity or desire justifies the person becoming different from everyone else. In a culture committed to equality, it is not just that equality becomes the First Order Principle of that society, everything that drives progress, is eliminated. Equality and progress are incompatible. Records are broken and new developments happen, because people are unequal.