80 Years + ? = Next Depression

When will the 21st Century Depression begin? The same conditions that existed in the 1920's are present today:
Growing disparity in wealth, Rising debt, Government Increased Spending, Tax breaks for wealthy, Corporations not paying for their problems, and a Reduction in the living wage as the Middle Class is working longer hours. IF Top 1% owns 48% of wealth, how much does Top 10% own...70%...80%