As the accompanying video at Elliott Wave, What "Too Confident to Save" Means for Stocks, shows, when the gap between high confidence and low savings is at its widest, a market crash -often- follows.
In 2000, the subsequent crash was 39%, in 2007 it was 54%. We are now again witnessing just such a gap, with the S&P 500 at record levels. Here's the graph, with John's comments:
Consumers Are Both Confident And Broke
Elliott Wave International recently put together a chart that illustrates a recurring theme of financial bubbles: When good times have gone on for a sufficiently long time, people forget that it can be any other way and start behaving as if they're bulletproof. They stop saving, for instance, because they'll always have their job and their stocks will always go up. Then comes the inevitable bust. On the following chart, this delusion and its aftermath are represented by the gap between consumer confidence (our sense of how good the next year is likely to be) and the saving rate (the portion of each paycheck we keep for a rainy day). The bigger the gap the less realistic we are and the more likely to pay dearly for our hubris.