Wouldn’t a body of matter of any kind need to be considered as single object across all time of its existence and never be considered without the context of its

Wouldn’t a body of matter of any kind need to be considered as single object across all time of its existence and never be considered without the context of its past and all potential future states? (as time and space are relative to the observer) we really haven’t ruled out that there is some sort of temporal version of entanglement that we will run across that allows for entanglement of two objects separated entirely by time. Something like this if true, might help explain why randomness appears to be a thing.