Most consumers are tapped out, bad news for a consumer driven economy. There can only be so much more debt accrued.
Note that this is savings rate net of taxes. It has been on a mostly steady decline since it has been calculated, with some spikes and a leveling out slightly higher than the rate before the last recession.
Or the debt-to-income ratios required to get a home today versus 30-40 years ago. Credit card debt growth, medical debt growth, saving rates declines, etc.