Who is not in touch with reality?
You: A lawyer who doesn't have the slightest bit of info on the engine other than 'it's an engine'.
My friend: An engineer of 30+ years who has designed and supervised the construction of many projects in the hundreds-of-millions of dollars, and who designed the thing and has thousands of pages of documentation, math, and all of the blueprints and specs needed to build it. Not only that, but the US government is willing to give him a ~$5 million grant in order to build it with the stipulation that a major car manufacturer sponsors it.
So without having any idea what this project is about, you feel you know more than an 3 decade career engineer and the U.S. Department of Energy. Before insinuating other people are "nut jobs", why don't you go take a look in the mirror, schmuck.