Things you've always wondered about in sci-fi movies

Why are tight leather and biker attire worn in post apocalyptic worlds especially wastelands which are often hot deserts?

Why don't gamma rays seem to cause cancer?

Why do "highly evolved" parasitic aliens often kill their hosts? Keeping them alive makes much more sense for a slew of reasons.
 
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Lightsabers can cut through almost anything without issue, but most times we see someone get slashed with a saber it just seems to graze across their chest or back *cough* Finn *cough* without splitting them into pieces.
 
Someone mentioned BTTF3. I love me some BTTF3, but I’ve got a serious plot hole (in my mind.) The fuel line (which, for some reason, is exposed on the outside) gets ruptured and the fuel all leaks out of the Delorean Marty arrived in. Hence all the hijinks of the film to get the car to 88 mph. Except—there’s another Delorean there. Why don’t they siphon the remaining fuel from Doc’s Delorean? Or move the fixed time circuits to Doc’s car? The time circuits on his are bad, but that’s it. Let’s say that there’s no fuel left. There are still two Mr. Fusions. Could Doc really not have rigged something up with the spare Mr. Fusion to get them going fast enough to hit 88 mph? And finally—isn’t the 88 mph a security feature? Doc put that in so he could still drive the car normally, 88 mph being faster than any highway speed limit at the time due to gas shortages and Reagan’s limitations, etc. But couldn’t he just have removed or altered the security feature so that being pulled by horses would hit the new target speed, or even so that it could time travel standing still?

I get that the answer is “so the movie could happen”, and I really do love the movie (minus the train ending), but I think a single scene or line of dialogue even as to why anything I’ve stated here wouldn’t work would be enough.
 
Good one. For that matter, why do you often see people dressed for the fall or winter when it's clearly well into the 90s or 100 outside in movies?
That's likely because there's a difference between when the film/show is set in and when it's being shot. There have been times when something is supposed to be taking place when or where it's supposed to be warm and they're dressed accordingly but in behind the scenes shots you see the case wearing heavy coats and holding cups of coffee (or some other hot drink) in order to try to stay warm between takes.
 
Lightsabers can cut through almost anything without issue, but most times we see someone get slashed with a saber it just seems to graze across their chest or back *cough* Finn *cough* without splitting them into pieces.
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It may not have been Superman, but I've seen elsewhere with invulnerable characters like Supes that also have heat beams using their heat beams and a small handheld mirror to shave with. In theory, this could be used to do other forms of grooming, although cutting your hair that way would probably be pretty tricky to do neatly.
The Boys...
But Homelanders use of it is a little extreme..
Just ask Mothers Milk!
 
Someone mentioned BTTF3. I love me some BTTF3, but I’ve got a serious plot hole (in my mind.) The fuel line (which, for some reason, is exposed on the outside) gets ruptured and the fuel all leaks out of the Delorean Marty arrived in. Hence all the hijinks of the film to get the car to 88 mph. Except—there’s another Delorean there. Why don’t they siphon the remaining fuel from Doc’s Delorean? Or move the fixed time circuits to Doc’s car? The time circuits on his are bad, but that’s it. Let’s say that there’s no fuel left. There are still two Mr. Fusions. Could Doc really not have rigged something up with the spare Mr. Fusion to get them going fast enough to hit 88 mph? And finally—isn’t the 88 mph a security feature? Doc put that in so he could still drive the car normally, 88 mph being faster than any highway speed limit at the time due to gas shortages and Reagan’s limitations, etc. But couldn’t he just have removed or altered the security feature so that being pulled by horses would hit the new target speed, or even so that it could time travel standing still?

I get that the answer is “so the movie could happen”, and I really do love the movie (minus the train ending), but I think a single scene or line of dialogue even as to why anything I’ve stated here wouldn’t work would be enough.

I've had plenty of the same thoughts.

Some rationalizations to make viewing easier:

- The first DeLorean is hidden in the mine by the time Marty arrives in 1885. Tell yourself that Doc already drained all the fuel out of it for storage (which is perfectly logical) before Marty arrived. After all, Doc didn't even know if Marty was coming when he stored the car. He had been alone in 1885 for the better part of a year by then. He had made up his mind to tell Marty not to come back for him. He didn't know that he was about to get shot by Buford Tannen.

- Rigging one of the Mr Fusions to power the wheels is not a minor task, not at that time. It means building a whole new electric car drivetrain. The best electric cars in the world weren't exactly getting up to 88 mph yet in 1885. Doc could have probably done it but not in a single week.

- I've never heard of the 88 mph being a security feature. I have imagined that it was a minimum speed to get the process to work. Maybe Doc built a series of time-traveling devices over the years as he struggled to get the entry speed low enough to be practical. Maybe he started with unmanned rockets or something.

Maybe the 1.21 Gigawatts was a compromise to get the 88 mph. Like, Doc figured out that he could get a slower minimum speed by throwing more electricity at the process. That is a fast-but-manageable speed for a production 1980s sports car. Go much faster and the PITAs start ramping up. You need safe clear straight roads, more driver skill, it's taxing on the car's drivetrain, etc.




What bugs me about the BTTF#3 fuel problem: It shouldn't have been too difficult to make some real gasoline out of crude oil in 1885.

Maybe it was just a mistake. Maybe Doc accidentally blew out the DeLorean's manifold trying the bartender's "strong stuff" because he was hoping they could find a fuel quicker than brewing up real gasoline.

Once it happened I suppose he could have swapped the manifold off the earlier DeLorean stored in the mine. But maybe he was reluctant about his younger 1955 self being able to repair the blown one. It runs the risk of stranding Marty in 1955 (and getting himself shot by Buford). He was already betting on his younger self to make a new circuit board out of 1950s parts. His 1955 self had enough to do.


-- I cannot even start thinking about Doc's time-traveling flying train at the end. Forget it. The movie's over. Go home now.
 
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Here's one, why do most sci-fi shows/movies always seem to show the crew wearing some sort of semi-formal, service dress style/equivalent uniform? Has nobody in space/the future heard of a working uniform before? Star Trek is pretty guilty of this, particularly during the TOS movie era, while I love the look of the Monster Maroons, I'd hate to spend an entire 6 - 8 hour shift wearing one.
 
Lightsabers can cut through almost anything without issue, but most times we see someone get slashed with a saber it just seems to graze across their chest or back *cough* Finn *cough* without splitting them into pieces.

It's probably just the plot, but Jedi are trained to do wounds without cutting. One of the visual dictionaries or SW books has a name for it. Basically it's what Count Dooku did to Obi-Wan in the Geonosis duel where he just injured him, without lopping off a limb.

Vader's armor is supposedly something like Phrik or Cortosis so that's why Luke's blade glanced off of it in ESB.
 
Speaking of Dune: the Fremen goal of terraforming the planet with saved water.
It's a closed system. Barring any water visitors and immigrants bring (which would be counteracted by the water in their ships and bodies they take with them when they leave), what water Arrakis has is the water Arrakis has. Redistributing it from the atmosphere (and people's bodies) to cisterns and then, someday, back into the atmosphere is a zero-sum game. If there was already enough water in the ecology to transform the planet, then it would have done it already all by itself (or IS already doing it, in its own time).

it was about getting it concentrated into the right parts of the ecology at the same time. the same amount of water was out there, but it was spread in a way that it wouldn't create mass greenery.

the planting of greenery by the fremen over long periods of time allows for there to be a mechanism that "traps" the released water into a cycle of plant life. just a little nudge in the right direction was stated as being enough to get dune to click over into a cycle of greenery.
 
It's probably just the plot, but Jedi are trained to do wounds without cutting. One of the visual dictionaries or SW books has a name for it. Basically it's what Count Dooku did to Obi-Wan in the Geonosis duel where he just injured him, without lopping off a limb.

Vader's armor is supposedly something like Phrik or Cortosis so that's why Luke's blade glanced off of it in ESB.
Also. I always figured that Ren simply cut Finn's back, and that the blade didn't necessarily reach the bone. Twas but a flesh wound!
 
Someone mentioned BTTF3. I love me some BTTF3, but I’ve got a serious plot hole (in my mind.) The fuel line (which, for some reason, is exposed on the outside) gets ruptured and the fuel all leaks out of the Delorean Marty arrived in. Hence all the hijinks of the film to get the car to 88 mph. Except—there’s another Delorean there. Why don’t they siphon the remaining fuel from Doc’s Delorean? Or move the fixed time circuits to Doc’s car? The time circuits on his are bad, but that’s it. Let’s say that there’s no fuel left. There are still two Mr. Fusions. Could Doc really not have rigged something up with the spare Mr. Fusion to get them going fast enough to hit 88 mph? And finally—isn’t the 88 mph a security feature? Doc put that in so he could still drive the car normally, 88 mph being faster than any highway speed limit at the time due to gas shortages and Reagan’s limitations, etc. But couldn’t he just have removed or altered the security feature so that being pulled by horses would hit the new target speed, or even so that it could time travel standing still?

I get that the answer is “so the movie could happen”, and I really do love the movie (minus the train ending), but I think a single scene or line of dialogue even as to why anything I’ve stated here wouldn’t work would be enough.
I think originally mr fusion was to power the entire car.. no more fuel.. even though we do see a futurist gas station in 2015

But they needed the delorean to somehow get stuck once again, this time in 1885 so the came up with the ripped fuel line, and that mr fusion was a hacked nuclear home energy system now powering the time circuits

Which I strongly believe I read somewhere..

Funny thing is, delorean’s weakness is the fuel system.. it is a very complicated fuel injection system, and the number one reason for failure and their reputation for being junk..

I’m pretty sure doc would have drained all the gas for the 70 year jury.. I imagine the anti freeze and brake fluid as well since they become acidic over time

1955 doc even mentions “ I filled the tank we gas” when running down the check list while yelling to Marty while he’s changing

You made some excellent points though.. the film seriously contradicts itself because doc can build a refrigerator.. which he must be using some kind of chemical compound.. your telling me he can’t mix or dilute some alcohol to get the car to run for alittle while..

As for taking or touching the other car, that would lead into a “paradox”, the bttf time line remains one universe.. not like the multiple universes explained in other time travel movies

So if they disturbed that car.. and something was damaged the Marty from 1955 that travels back to 1885 wouldn’t be in 1885 anymore

There is actually a wicked cool theory about rich Marty lol and how he gets stuck in a ****** 1985 when he comes home lol

I have to dig it up if I can find it and share it with you

But yeah, the bttf 3 gas shortage has been talked about for decades and I love listening and seeing new theory’s come up
 
I think originally mr fusion was to power the entire car.. no more fuel.. even though we do see a futurist gas station in 2015

But they needed the delorean to somehow get stuck once again, this time in 1885 so the came up with the ripped fuel line, and that mr fusion was a hacked nuclear home energy system now powering the time circuits

Which I strongly believe I read somewhere..

Funny thing is, delorean’s weakness is the fuel system.. it is a very complicated fuel injection system, and the number one reason for failure and their reputation for being junk..

I’m pretty sure doc would have drained all the gas for the 70 year jury.. I imagine the anti freeze and brake fluid as well since they become acidic over time

1955 doc even mentions “ I filled the tank we gas” when running down the check list while yelling to Marty while he’s changing

You made some excellent points though.. the film seriously contradicts itself because doc can build a refrigerator.. which he must be using some kind of chemical compound.. your telling me he can’t mix or dilute some alcohol to get the car to run for alittle while..

As for taking or touching the other car, that would lead into a “paradox”, the bttf time line remains one universe.. not like the multiple universes explained in other time travel movies

So if they disturbed that car.. and something was damaged the Marty from 1955 that travels back to 1885 wouldn’t be in 1885 anymore

There is actually a wicked cool theory about rich Marty lol and how he gets stuck in a ****** 1985 when he comes home lol

I have to dig it up if I can find it and share it with you

But yeah, the bttf 3 gas shortage has been talked about for decades and I love listening and seeing new theory’s come up
It doesn’t really bother me because the movie is so damn fun otherwise, Buford is both a hoot and absolutely more sinister than Biff (or Griff) ever was, the score is great, and the finale is spectacular (again, minus Doc showing up with his gremlin children in the flying train). But I do like bringing it up, it makes for fun conversation. As for the whole “paradox” thing, I feel like the only thing that would change is that 1955 Doc would have to replace whatever they took from the 1885 Delorean. I do think I remember the line about the gas being filled though, and it certainly is possible that Doc drained the gas either getting himself to 1885 Hill Valley or storing the car.

Dang, now I’m in the mood to watch these again.
 
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