I disagree that the name unobtanium is an example of lazy writing. I always took it for an in-universe joke (doubling as a meta-joke), and/or a deliberately gim

I disagree that the name unobtanium is an example of lazy writing. I always took it for an in-universe joke (doubling as a meta-joke), and/or a deliberately gimmicky marketing name invented by the corporation. There are plenty of playful scientific terms in the real world (the "sonic hedgehog" protein just to take one example).