Ann: Letter to Shareholders, page-6

Hello investors. I came across this stock whilst watching youtube. I must say I am fascinated by the concept of condensation used to water plants. Its such a simple idea. What is to stop other from following the idea? Also, the heating and cooling of the roots again is a great idea but why cant others copy the concept slightly differently. I dont see how the company will maintain a patent on such a broad concept. Any aid here would be greatly appreciated.