A note on coins and values

Anyone here ever read "Illegal Aliens"?

Besides being a bit of a silly story, it had the interesting idea that
galactic currency (used throughout the galaxy by many species) was based
on Thulium.

Thulium?? Yes, thulium. As the book pointed out, thulium is fairly
dense, very rare, and has almost no useful attributes. Other metals are
stronger, weaker, less or more dense, less or more reactive.

In short, it makes a great substance to denote value without usefulness.

Comments?

- -Pooh Bear