imagine you traveled back in time found your grandpa when he was a boy and killed him without him one of your parents and eventually you would never have been born but if you were never born how could you have traveled back in time to kill him in the first place well you wouldn't meaning that your grandfather would not have been killed by you and you would eventually be born which means you would travel back in time and kill him unless every instance of going back in time creates alternate timelines with different outcomes where your actions
like killing your grandfather could create a new reality each time
