Wealth inequality is really an instance of homophily. Money attracts money. The rich get richer. Wealth inequality harms the economy, because as people get poo

Wealth inequality is really an instance of homophily. Money attracts money. The rich get richer. Wealth inequality harms the economy, because as people get poorer they can no longer participate in economic activity. Businesses need consumers with money to spend. When enough people become sufficiently poor, uneducated, and angry, then you get Trump.