[beberlei]

Thats not what parent is saying. They are saying todays value of the known portfolio is not what is on the books due to interest and risk discounting the future value at which the bonds mature.

Either you sell everything now at the discounted value, leading to loss in deposits. Or you wait 10 years and pay everyone back their deposit then. Given current inflation a dollar now is only worth 50 cent in 10 years.