What is a “Gadgetbahn”

Interesting video and informative. Also the comment about the Hyperloop should also be taken note of.

One quibble, I would not call “monorail” a gadgetbahn, rather it is a “niche” transit mode, operating in environments that would be too expensive or awkward for a railway. True monorails are quite rare (Germany’s famous Schwebebahn is a true monorail) but stradlebeam monorails are not true monorails.