GRE ARGUMENT
“MANNED SPACE FLIGHT IS COSTLY AND DANGEROUS. MOREOVER, THE RECENT SUCCESS OF A SERIES OF UNMANNED SPACE PROBES AND SATELLITES HAS DEMONSTRATED THAT A GREAT DEAL OF USEFUL INFORMATION CAN BE GATHERED WITHOUT THE COSTS AND RISKS ASOCIATED WITH SENDING MEN AND WOMEN INTO SPACE. THEREFORE, WE SHOULD INVEST OUR RESOUCES IN UNMANNED SPACE FLIGHTS.” The argument is about investing resources in unmanned space flight instead of manned space flight because manned flight is costly and dangerous. This argument is not a good argument because the conclusion is not made based on the evidence. Firstly, the argument does not specify what kind of information is gathered by manned and unmanned space flights. Unmanned space flights may not provide the same kind of information that manned space flights. As man can look and analyze the things better, we cannot claim that manned flights will provide more useful information. Secondly, the argument shows no data of previous years information gather...