The document discusses a model being developed to project DC plan cash flows based on evolving generational demographics. It analyzes how contributions and distributions may be impacted out to 2045. Several scenarios are explored to test how incremental savings increases from Millennials and Gen Xers could offset expected distributions from retiring Baby Boomers. Key insights include that contributions may not outweigh distributions until the late 2020s or early 2030s without changes to savings rates among younger cohorts. Plan design features and targeted campaigns may be needed to increase savings 1-2% from Millennials and Gen Xers to accelerate the timeline.