I've worked on stuff like that most of my life, but no success, so far
Sometimes designs make perfect scents in the mind, but once you build it, it doesn't function as the imaginary one.
But how many attempted to fly? Then the Right Brothers achieved it.
How many light bulbs did Thomas Edison build, before one worked properly?
I think if a person gets the right concept, anything is possible to be manifested from the mind to the work bench, and function properly.
But there are many con artists out there, that's for sure.