The concept of expiring currency has been experimented with even in the era of paper notes.
Alberta, for example, tried circulating banknote-analogues that required a stamp to be added every week to remain valid; the goal was to encourage people to spend them rather than having to pay for the stamp.
In the context of something like economic stimulus payments, where the goal is to force jumpstarting the economy NOW, how would prevent people who can afford it from just setting aside their payment for later use?
Alberta, for example, tried circulating banknote-analogues that required a stamp to be added every week to remain valid; the goal was to encourage people to spend them rather than having to pay for the stamp.
In the context of something like economic stimulus payments, where the goal is to force jumpstarting the economy NOW, how would prevent people who can afford it from just setting aside their payment for later use?