text: In paragraph 4 the author starts to build his argument for going to Venus. He states that it is the most earth-like planet, and it has a surface of rocky sediment that has planetary fetures close to ours. Other than that he does not build a case for Venus that a lot of people would back up. His argument that it si the closest planet in case we ever needed to leave earth is an invalid argument becasue of the state of our tech compared to the extreemley harsh conditions of Venus.