I know there is outside energy involved (ambient heat) but this sounds too much like a perpetual motion machine.
“Perpetual Motion” is impossible.
“ALMOST Perpetual Motion” is possible.....................
Its also a question of scale. Like solar, wind, etc… they would find that you very quickly reach diminishing returns. They mentioned “low voltage.” Perhaps they can generate enough energy to keep a very sophisticated computer chip “on” at some greatly reduced state.
But what about moving a 3000 lb car down the road at 60 mph?
Photosynthesis seems pretty crazy, too.
That’s my gut reaction as well.
When we reach the heat death of the Universe, it'll stop; Brownian motion .NE. zero-point energy, which derives from the non-commutation of the position and momentum operators and Heisenberg's Uncertainty Principle.
Maybe there IS an exception to the rule, but Arkansas...