Perpetual motion machine will appear

Nikola Tesla : engineer
Nikola Tesla claimed to have discovered an abstract principle on which to base a perpetual motion machine of the second kind. No prototype was produced. He wrote: A departure from known methods – possibility of a "self-acting" engine or machine, inanimate, yet capable, like a living being, of deriving energy from the medium – the ideal way of obtaining motive power.

"The problem of increasing human energy: With special references to the harnessing of the sun's energy", Century Magazine (1900)