From Modern Mythology:
California has been working up the gumption to build itself a bullet train for about five years now. It will cost tens of billions of dollars, and will be finished no sooner than 2028. A week ago, Musk proposed a solution that is not only cheaper than the proposed bullet train, but better in pretty much every conceivable way. His plan, in really stupidly simple terms, is to build a gigantic closed-circuit blowgun. Yeah, it sounds totally ridiculous, but that’s mainly because I described it in a ridiculous way. The plan itself actually makes a lot of sense.
Here’s the actually puzzling part, at least to me. Musk went ahead and proposed this wild thing, even wrote up a 52-page technical document about it, but he’s got no intention of lifting a finger to actually build it. Yes, people are constantly coming up with ways for the government to run itself better.