Things that are not equivalent to international cash fungible currencies or securities might include setups like: I have a private club for helping others. Some of the services take currency as pay, but they are not open to everyone. They also take internal measures of credit that are based on various club achievements & there may be official or unofficial waiting queues for various services or products. Some of the valuable services & products are not available in public markets.
Theoretically you can ask how it might figure into your retirements planning. Mattering a lot to that question is your believe about whether all the public people get killed or otherwise displaced from their assets before reaching retirement age & what you predict about the stability of various systems.
We’re not at a place to grind out decimal points. We’re at a place to think about what is true benefits for living.