If I had a time machine, I would go to the future and help find the teleporter. Because I’m sure teleporting will benefit most people and there’s a lot of money involved, or I would go back and fix my foundation. Because my academic performance used to be very bad and this job affected my foundation. In fact, if there was a one-time time machine, I would definitely not be able to decide where to go. Because anything can pass through people minds as past or future. However, playing with the past or the future can be dangerous. So if I were you, I might not use more than three times for machine. Maybe by learning how to do it, I would like to go back to the time before the time machine was invented and invent the time machine myself. What would you do if you had a time machine?