It can be spent, traded, earned, lost and destroyed... But not duplicated, extended in whole volume, or directly regulated beyond acceptable network programming. Thus, not a FIAT. (Just for the anti-counterfeiting alone, it will save us billions in losses. Ahem, Russia, Zimbabwe-dollars.)
How stupid you sound... No, it is not a "physical asset", it is not a "stock in the network" and it is not a "commodity". You barely got right about the medium of exchange.
Yes, it can be "duplicated" (a.k.a. double spend), it can be "extend in whole volume" and it can be "directly regulated".