My ideas of time travel make it so that I can't go back and change anything that's already happened in the past. I could only do what I already did. What's happened in the past is already done so you can't change anything because you didn't change things. If you did manage to go back and change things in the past, it would have played out so that the present you wouldn't know the circumstances in which things happened differently. Does that make sense?

Anyway, in line with my thinking of time travel, benefits for me would only exist in the future where I could learn about lotto ticket numbers or which companies are doing well in the stock market.