Japan faces a massive challenge as trillions in assets held by elderly citizens increasingly sit idle due to cognitive decline risks. This emerging 'dementia wealth gap' isn't just a domestic issue—it's reshaping how we think about capital flow, asset management, and generational wealth transfer on a global scale. As cognitive issues rise among aging populations across developed nations, the broader implications ripple through financial markets. When wealth becomes immobilized, it affects everything from investment activity to economic growth patterns. It's a quiet but significant force reshaping the economic landscape we're all trading in.