If in 25 years time we're sitting around a small fire somewhere in the last inhabitable part of the arctic region you owe me a week's worth of roasted rats or one human leg.
If we're at a convention hosted by the first self-aware AI on an orbital platform I owe you a home fabrication device.
That's a win/win for you. If society fails and you need to eat roasted rats or humans to survive, you have a meal ready for you.
If society succeeds and creates a good society, you're down just one cheap home fabrication device but living in a society where you don't have to eat rats.
If we're at a convention hosted by the first self-aware AI on an orbital platform I owe you a home fabrication device.