Rate the following argument fragment on its writing, argument, and language skills:
Evidence: They say that they could use hovering vehcles such as a blimp to fly over the planet, somewhere around 30 miles high. While 30 miles is a long way abover the planet, the temperature would still be around 170 degrees Fahrenheit, which is not ideal for reseachers. "Not easy conditions, but survivable for humans." If studying a planet is as difficult as the author is saying here, then Venus should be abandoned because even if NASA was able to study it, there is obviously no way that the planet will ever be suitable to live on. The author's arguments so far have all been a lost cause.

Score: 2