I am one who firmly believes in engineering from nature... it's been here millions of years longer and has thrived without our fool technology, so it ought to know a thing or two!
"Nature's way" is tracking... all plants actively follow and turn to face the sun, to varying degrees.
I subscribed to their newsletter and keep reading good things about it. The basic principle seems sound. There's an article in June issue of Popular science. If it is snake oil, they sure are selling it
