Rate the following argument fragment on its writing, argument, and language skills:
Evidence: Siliscon electronics would be resistent to the harsh conditions on the planet-- for a while. The systems would run for about a month before total failure. these silicon systems are very expensive to bein with and are still in the development phase here on earth. Creating enough silicon circuits to power a rover or vehicle would take years to manufacture. And by the point of satisfactory innovation for silicon electronics, a new product may have been presented.

Score: 2