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Science is the art of understanding nature. Science is based on hardcore facts, observations, verification and validation. I can't say for sure whether the world will be a better or worse place after 100 years, because I think one part will change for the better, while another part will be worse. In the technology, everything has a different type. Many new machines have been invented. Those things will help people more efficiently. You can finish work by 'one touch'. 
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