Daily Prompt : One-Way Street Congrats! You’re the owner of a new  TIME MACHINE. The catch? It comes in two models, each traveling one way only: the past OR the future. Which do YOU CHOOSE, and why?

If I had a time machine that would take me to either the past or the future, I think that I would not use it unless if something evil is threatening the existence of the whole humanity. In most of the movies that I have seen, people who has time machine has been given the chance to change the past/future in order to fix the present time but I still cannot understand how going back in time (for example) and talking to your younger self would help you (You in the present). It seems that when the past version of you takes your advice then it would affect what you are in the present? Does it mean that you have copies of yourself? We are talking of one time machine here right? So it does not make sense to me how going back to the past would change the present or future if your present is already happening.

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