text: Driverless cars are not safe ideas. There are many things that could go wrong while using one. The cost of one could be to much. They would only cause more trouble and accidents on the road. Many places would not allow them. The author shows that the idea of studying Venus is a good idea even though it is dangerous by using many details from the text. The author uses descriptive evidence and examples to show us what to expect. It is also showed in the passage that the author gives us possible solutions to our current problems. Finally, the author also gives us facts to further prove their point. So the author uses many different types of ways to show how the studying of Venus is a good idea even with the many dangers that come with it.