IMHO, rising debt is a serious concern. If you're familiar with Ray Dalio's simple machine analogy, it's quite apt here. Eventually, the debt becomes unpayable, at which point the theoretical structures you've built on top of this unpayable debt collapse. This is a simple debt cycle and we have had a recession once every 5-10 years for the last 100 almost.....It stands to reason there would be a correction in our future.