Re: Minor BTTF Part Two question
Of course they can always say that Doc Brown will eventually go to the future and introduce these devices (like iPhones) into the 80's and the 50's.
Oh wait, in order for that to work, we'd have go with the Bill and Ted theory of time travel where all future interference happens in one single timeline!
Xavier: "Listen to me very carefully, my friend. Killing will not bring you peace.
Lensherr: "Peace was never an option."