It is a fact that we, all human have been relying on new innovation. Some people claim this is a waste of time or just cost too much and not really worth it. I disagree with this statement and the following essay will discuss the details. There are many scientific discoveries and innovations that have been supporting our lives. Although it is quite time consuming and costs a lot. And it does not always succeed. However, great scientific inventions have been bringing hope and comfortable lives to our society. Thanks to scientists, our life became much easier due to the discoveries of renewable energy such as wind energy, solor energy, fossile fuel and so on. The discoveries of cure for terminal disease like cancer, HIV saved many people's lives. People would not have been able to survived unless some scientist found the cure for an epidemic disease back in old days. The world changed significantly thanks to this since people no longer had to suffer from those illness....