100 votes
Accepted

Was the “future” world predicted in Back to the Future 2 intended to be genuinely predictive?

According to the Q&A Commentary with Robert Zemeckis and Bob Gale, Back to the Future Part II Blu-Ray, 2010, the description of 2015 was not meant to be accurate. In the commentary, Zemeckis says (...
Klaus Æ. Mogensen's user avatar
77 votes
Accepted

Why did Doc Brown take so long to write to Marty?

He tried to fix the DeLorean: I set myself up as a blacksmith as a front while I attempted to repair the damage to the time circuits. Unfortunately, this proved impossible because suitable ...
PointlessSpike's user avatar
74 votes

Does Doc Brown sabotage himself in Back to the Future 2?

Maybe I am missing a point to your question, but the wrench is a wrench, it either is good for the nut/bolt you use, or it is not. Ie. if the future Doc gave the past Doc the five-eighths wrench the ...
Dvorkam's user avatar
  • 759
54 votes

Why did Doc Brown take so long to write to Marty?

Doc probably "sent" at least one earlier letter. Knowing Doc, he probably wrote Marty a letter as soon as he found paper to write on and cash to pay for it. But his chosen method of delivery was... ...
Dungarth's user avatar
  • 3,998
44 votes

Were there two DeLoreans in 1885?

Yes, for as long as Marty is in 1885, there are two versions of the DeLorean there as well. However, that doesn't simplify things for them like you might think. First, the gas. Couldn't they just get ...
Alarion's user avatar
  • 7,906
29 votes

Does Doc Brown sabotage himself in Back to the Future 2?

Of the options you presented, I'd go with... A) The whole interaction is indeed harmless and will have no effect. In regard to your second option... B) He gave himself the right wrench, but that was ...
LogicDictates's user avatar
28 votes

Wouldn't giving the Grays' Sports Almanac to Biff change the outcome of the games after 1955?

Remember that when time travel causes changes in Back to the Future, there's a "ripple" that adjusts the timeline, and it even affects people and objects that have been displaced in time - for example,...
ConMan's user avatar
  • 2,530
25 votes

Why was Marty fired in 2015?

Unless it's explained in the novelization, it doesn't look like we're meant to know exactly what the operation was; it's suggested that it's some kind of easily missed financial malfeasance (like ...
K-H-W's user avatar
  • 58.8k
24 votes
Accepted

Why didn't Doc Brown send Marty to the future before sending him back to 1885?

The film suggests that the 1955 Doc repaired the time circuits before Marty went back to 1885. The letter from 1985 Doc specified that the parts needed to repair the time circuits would be available ...
LogicDictates's user avatar
16 votes

Were there two DeLoreans in 1885?

It is the same DeLorean. Doc jumps to 1885, taking the DeLorean with him. In 1885, Doc writes the letter and hides the DeLorean. In 1955, Marty receives the 70 year old letter, and find the Delorean ...
Flater's user avatar
  • 9,039
14 votes

Why was Marty fired in 2015?

We don't know and it's not explained. In both the draft script (where it's not mentioned at all), the final revised draft script and the novelisation it's simply described as a "plan", one ...
Valorum's user avatar
  • 685k
14 votes
Accepted

Why didn't Old Biff keep the time machine?

I think the main point is that Biff is not smart. I doubt he would have any curiosity or interest in the time machine itself. And in no way he would come up with any idea to capitalize on it. The ...
bdecaf's user avatar
  • 1,604
14 votes

Why did Doc Brown take so long to write to Marty?

He was establishing himself in the community. He was dropped in the middle of the Old West without a penny to his name of current-era currency (as far as we know), no relatives, nobody who knew him or ...
Broklynite's user avatar
  • 22.6k
13 votes

Why was Marty present in his jump to 2015 in Back to the Future 2?

This was answered in the official BTTF FAQ which was done by the script writers, Bob Gale and Robert Zemeckis: 1.13: When Doc takes Marty and Jennifer out of 1985 and brings them to the future, how ...
Hypnosifl's user avatar
  • 56.8k
12 votes

Why didn't Doc Brown send Marty to the future before sending him back to 1885?

1885 Doc takes great pains to highlight the danger of time travel in his letter to Marty and 1955 Doc: Do not — I repeat — do not attempt to come back here to get me. I am perfectly happy living in ...
Milo P's user avatar
  • 26.6k
11 votes

Why did Doc Brown take so long to write to Marty?

In addition to the other answers given, he recognized he really had to get the information in the letter right. He would raise even more suspicion by leaving multiple 'letters for the future' at the ...
gotorg's user avatar
  • 189
11 votes

Why didn't Marty's "you're fired" note fade away as soon as 2015 Biff changed the timeline in 1955?

It might have, but we will never know. Jennifer is the one with the "You're fired" note and she's not around (i.e. on camera) during the time from when they drop her off at her "home&...
Gunnar Södergren's user avatar
10 votes

Why didn't Old Biff keep the time machine?

I was always under the impression that Biff doesn't really understand how time travel (in his universe) works, and returned expecting to find himself living a life of wealth. This was the easiest job- ...
Broklynite's user avatar
  • 22.6k
10 votes

Why did the old Biff choose to travel into 1955?

I think the other answer dances around this but... Think back on your life. When would you love to go back and talk to yourself at some prior point? (not necessarily to give yourself a future sports ...
Machavity's user avatar
  • 51.7k
10 votes
Accepted

In BTTF2 is the rest of the USA in a state of anarchy?

If memory serves, the only real information we have outside of Hill Valley is from the newspaper showing Doc Brown being committed: As you can see, in 1985, Richard Nixon is in his fourth term, ...
samuei's user avatar
  • 631
10 votes

Does Doc Brown sabotage himself in Back to the Future 2?

There was no "snap" If you rewatch the original movie, you'll see that in both cases (up on the clock tower and down at the street post) the cable uplugged. Nothing was broken, it just came ...
MivaScott's user avatar
  • 1,104
9 votes
Accepted

What memories did "Old Marty" have in 2015 of his time travel adventures?

I think it's clear that Marty only remembers the events of Back to the Future 1, minus the part at the end where Doc comes back to collect him. Keep in mind Doc went to the future first, and then ...
starpilotsix's user avatar
  • 31.4k
8 votes
Accepted

What happened to the other characters in the 1985 "Biff-timeline"?

George McFly = Dead Lorraine: Marty! George, your father is in the same place he's been for the past 12 years. [takes a sip] Oak Park Cemetery. Biff explicitly states that he killed him, presumably ...
Valorum's user avatar
  • 685k
8 votes

In Back to the Future, did kids really wear their pants inside out in 2015?

It seems like a bit of a generalisation that all kids in the future would wear the same style. Doc is trying to make Marty look as much like his son as possible, has clearly observed that Marty Jr ...
Astralbee's user avatar
  • 5,360
7 votes

Wouldn't giving the Grays' Sports Almanac to Biff change the outcome of the games after 1955?

He probably did not have to keep betting on sports outcomes. This is explained at "Biff Tannen" museum where Marty watches a clip about Biff's rise to fortune. [Narrator] See Biff's humble ...
Skooba's user avatar
  • 60.3k
7 votes

Why didn't Old Biff keep the time machine?

In order to make the money and not get caught, Biff would have to provide the almanac to his younger self and then return the time machine to where he found it without getting caught. In his mind, he ...
El Bromista's user avatar
7 votes
Accepted

Was Doc dead in 2015 in the original timeline?

Doc's life after the events of BTTF II is pretty well recorded in the sequel BTTF 3. He was ejected into the 1880s where he worked as a blacksmith. He met and wooed his future wife and assisted Marty ...
Valorum's user avatar
  • 685k
6 votes

In Back to the Future Part II, how does Doc avoid creating a paradox?

In the Back-to-the-Future-Verse, time travelers seem to be largely insulated from the results of their own actions. Marty, for example still has detailed memories about his family and their lives ...
Valorum's user avatar
  • 685k
6 votes

Why didn't Doc prevent Marty's accident in 1985

Probably because it wasn't a simple matter of avoiding one event. The car accident was the ultimate problem Marty encountered from his personality of not wanting to appear a chicken. Even if Doc had ...
Often Right's user avatar
  • 69.2k
5 votes
Accepted

Why did Marty ask Doc if they had made it in BTTF2 after returning to 1985 from 2015?

Pure speculation on my part but I think Marty said that because of the sheer ease of time travel when flying as compared to driving the time machine. When Marty goes with Doc from 1985 to 2015, ...
Mykewlname's user avatar
  • 1,972

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