Unobtainium is a hypothetical, fictional, or impossible material, but it can also mean a tangible but extremely rare, costly, or reasonably unobtainable material.
Are wind, solar, and batteries the magical solutions to all our energy needs? Or do they come with too high a price? Mark Mills, Senior Fellow at the Manhattan Institute, analyzes the true cost — both economic and environmental — of so-called green energy.
https://www.prageru.com/video/whats-wrong-with-wind-and-solar/
Rmpropane.org