I assume one thing that would result in an unexpected boost to longevity would be greater innovation in the medical industry. But will more federal government — via Obamacare — involvement in the U.S. healthcare system result in more innovation? History would suggest otherwise. So with less innovation, the less likely there will be an surprise longevity boosts. It’s a feature, not a bug. And according to the IMF, avoiding that scenario would save trillions.