Store of value vs medium of exchange

[xxjs]

These can not be disconnected.

A fine day in the jungle:
-- Dude, I have codez. They are valueable. Interested?
-- Sure, how many for this piece of ganja?
-- Oh, sorry, they are not transferrable.
-- ?

5 minutes later:
-- Dude, I have codez. They are transferrable. Interested?
-- Sure, how many for this piece of ganja?
-- Keep it, you can have some anyway.
-- Ehh, okayee, what can I use them for?
-- You can keep them forever or donate them to who you like.
-- ?

[DannyHamilton]

Of course the relationship between usefulness as a store of value and usefulness as a medium of exchange can vary quite a bit.

A fine day in the jungle:

• Dude, I have this very heavy, difficult to exchange, difficult to identify yellow rock that lots of people really want.  You can store it forever. Apparently is is valuable. Interested?
• Sure, how much ganja you want for that one rock.
• Your entire crop, and next year's crop too
• I heard I can get 5 years crops worth of seeds for a rock that size, so ok

5 minutes later:

• Dude, I have this crop of really tasty vegetables. Everyone seems to want them really bad. Apparently it is valuable. But you've got to exchange or eat it in the next 4 days or it will be worthless
• Sure, I'm hungry, how much vegetable for this piece of ganja?
• I'll give you 2 days meals worth of the vegetable for it

[johnyj]

Gold value a lot, and it is not easy to transfer, but still many exchanges opened for trading gold

You can have exchange built upon valuable things, not the other way round