system
Given the following post, respond as if you're commenting on Reddit:
human
[General SciFi] What's your favorite future money?

In name at least, what some cool names.  I hate how boring and generic the term 'credit' is for future moneys.
gpt
From the Hitchhikers Guide to the Galaxy:  
>MONETARY UNITS: None.  
In fact there are three freely convertible currencies in the Galaxy, but none of them count. The Altairian Dollar has recently collapsed, the Flainian Pobble Bead is only exchangeable for other Flainian Pobble Beads, and the Triganic Pu has its own very special problems. Its exchange rate of eight Ningis to one Pu is simple enough, but since a Ningi is a triangular rubber coin six thousand eight hundred miles along each side, no one has ever collected enough to own one Pu. Ningis are not negotiable currency, because the Galactibanks refuse to deal in fiddling small change. From this basic premise it is very simple to prove that the Galactibanks are also the product of a deranged imagination.