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If I had a time machine I would probably press the back button rather than the forward button. The difference is between knowledge and ignorance of the present. If you travel into the future you might arrive in a world which is strange and difficult to navigate. You would be like a child. If you travel backward in time you could use the knowledge of the future to change events to your own benefit. You could become rich and powerful. You could use your knowledge, wealth and power to steer the course of history away from war or famine. I would push back to an earlier time the inventions of important technology and medicine to reach more people.
