Conversation

That currency is just an abstraction of the value of future exchange is well known,
but that is often neglect is what this means,
that it is therefore an abstraction of trust, the trust of the currency be exchangeable for goods or services at a future time.

Trust does not per se require currency,
but can be a trust that a society has agreed that all basic needs will be fulfilled for example.
In today's world, the basic needs of every person can be fulfilled many times over.
Currencies are an unnecessary abstraction, which only intrinsically enables hoarding and thus disables the basic needs of every person to be met but instead have those needs be literally dumped for incineration.
It could easily be replaced by a database of needs which by its existence could also help predict future trends.
We could, but we don't. Let's!