I mean, if your definition of equality is 'everyone is equally poor', then I suppose subsistence farming is what you want to aim for. If you then urbanize, you

I mean, if your definition of equality is 'everyone is equally poor', then I suppose subsistence farming is what you want to aim for. If you then urbanize, your inequality increases rapidly. But since we already have an urban, industrialized society, increasing density is not going to move the needle on inequality. It's arguable it'd move backwards because more people can suddenly live in a desirable area.