But what if there is an infinite amount of universes, so when you travel back in time you actually travel to the past you, but it is the past you in a different reality than the present you comes from. So even tho you change the reality for the past you, you don't change the "present" you because the past and the present you is 2 different realities. So when you put money in the mail for the past you, you only change possible (not yet decided) future for the"past" you, the past you really just is the present you in a different reality that was created when you time traveled.
Altho I guess if I was me I whould not care about giving a different me money, id just tell me to get my own fucking money. So perhaps one "me" in a different reality actually can travel to the past and give me money but he just thinks I need to get my own fucking money. Fuck me.
Hmm but if the universe is chaotic and you travel forward in time.
Then you can travel to the future and suddenly it is all a nuclear wasteland
And you can also in the exact same situation travel to the future and it's all suddenly like the john lennon "imagine" song
Because randomness was the most basic thing that decided the future.