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Ultimately, as a result of this incidental meeting and friendship, Marty goes back in time, where he meets Doc ahead of the original sequence of events (ahead of time for Doc at least). In the original history, Doc and Marty met by some unknown series of events, purely by happenstance (Doc perhaps taking an ad out in the paper for a lab assistant/grunt, for example and Marty happened to answer it). Doc wouldn't "already" know Marty in 1955. So even though there was no "butterfly effect", there still is a mild one, but it was mild enough not to change the future drastically. This is because as we find out, Doc read the letter, but the Doc we saw before Marty went back to 1955 really did die.Ī similar thing is how Marty's family from the first 1985 seemed almost poor and just another local family and how Marty in 1955 made his father stand up for himself, if this never happened then George most likely would never have become rich and famous.
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When he arrives back to 1985 he discovers that Doc is still alive and was wearing a bullet proof vest. Marty's presence in the past affected his mother's, father's, Biff's and Doc's only (also other people's lives but that isn't relevant). And thats the origin of their relationship. Doc gave Marty a part-time job to help with experiments, tend to the lab, tend to the dog, etc. Both of them were the black sheep in their respective environments. when Doc found him there, he was delighted to find that Marty thought he was cool and accepted him for what he was. Marty snuck into Docs lab, and was fascinated by all the cool stuff that was there. So, being a red-blooded American teenage boy, age 13 or 14, he decided to find out just why this guy was so dangerous. But the history of the characters that Bob Zemeckis and I created is this For years, Marty was told that Doc Brown was dangerous, a crackpot, a lunatic. As per a Mental Floss post by Back to the Future's co-creater Bob Gale: Okay, from the horses mouth (yes, Im the horse er, co-writer, co-creator): We never explained it in the movie. He pays me 50 bucks a week, gives me free beer.and gives me total access to his record collection - he's got this great old record collection. A couple of years ago he showed up at my house and hired me to sweep out this garage of his. In an early draft of the screenplay, Marty got to know Doc when he was 15 he would do odd jobs for him as an assistant, initially as an after-school job, but after some time they became friends: MARTY: Doc Brown's all right - he's just a little hung up on time.
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