Lets say that event X has three pre-requisites A, B and C.Epistemology wrote:why?Gideon wrote:If time travel is possible, then there can be an unlimited number of copies of our body and spirit. What if one of them is killed while traveling through time?
If time travel is possible, then it must be possible for the future to occur before the past.
Event X occurs.
Someone finds event X undesirable, and then travels back in time to make sure that pre-requisites A, B and C never happen.
Event X has now occurred prior to the changes in the past to A, B and C.