Anonymous at Wed, 3 Jul 2024 01:11:30 UTC No. 16265228

if they asked to be rescued, yes

Anonymous at Wed, 3 Jul 2024 01:12:28 UTC No. 16265230

>>16265225
>a ftl engine was invented
ze premise does not make sense because zis is not possible

Anonymous at Wed, 3 Jul 2024 01:49:47 UTC No. 16265265

>>16265230
>ftl is impossible
pretending to be german wont hide your nose einstein.

Anonymous at Wed, 3 Jul 2024 01:55:54 UTC No. 16265271

>>16265225
>100-year-long
100,000-year-long, more likely

Anonymous at Wed, 3 Jul 2024 01:56:55 UTC No. 16265272

>>16265265
faster than light travel is impossible, THOUGH

Anonymous at Wed, 3 Jul 2024 02:40:23 UTC No. 16265313

>>16265225
I read a scifi book a few years ago with this exact premise. Decades in space, crewmembers going crazy, half of them died, the survivors had to resort to cannibalism to stay alive, etc. Then they finally reach their destination, just to be visited a year later by people with ftl

Anonymous at Wed, 3 Jul 2024 02:51:16 UTC No. 16265324

Bro just make a pit stop and radio them real quick asking if they wanna hitch hike.
Funny how every "ethical dilemma" can be solved by just talking a little bit.

Anonymous at Wed, 3 Jul 2024 02:55:27 UTC No. 16265327

>>16265225
>but their grand-children would be the first humans to set foot in another star system
generation ships/ark ships might genuinely be the dumbest idea for interstellar travel

Anonymous at Wed, 3 Jul 2024 03:03:28 UTC No. 16265331

>>16265327
Why?
Without cryo stasis or FTL it seems the only way to get viable human DNA to another Star.

Anonymous at Wed, 3 Jul 2024 03:21:07 UTC No. 16265343

>science board
>nobody knows lorentz transformations learned in high school

Anonymous at Wed, 3 Jul 2024 03:32:00 UTC No. 16265351

>>16265225
FTL is physically impossible.
>>16265271
Maybe if you were going slower than the Voyager spacecraft. But we can build spacecraft that go much faster, and already have. Current propulsion technology could get us there in less than 7000 years. By 2092 we will very likely be able to cut that down even farther. Probably not to 100 years, and we likely wouldn't have the technology to build a functional generation ship by then anyway.
But if you could accelerate to even a 10% the speed of light it would only take about 40 years to get there. 20% and it would be about 20. That's fast, but not impossible.

Anonymous at Wed, 3 Jul 2024 03:42:38 UTC No. 16265364

>>>/lit/sffg/

Anonymous at Wed, 3 Jul 2024 09:15:30 UTC No. 16265708

>>16265225
>Would it be ethical
PHILOSOPHY THREAD
OFF-TOPIC

Anonymous at Wed, 3 Jul 2024 09:45:52 UTC No. 16265729

>>16265351
>But if you could accelerate to even a 10% the speed of light
With what considering even antimatter won't let you do that.

Anonymous at Wed, 3 Jul 2024 09:48:53 UTC No. 16265734

>>16265225
at least pick something more realistic like curing aging

Anonymous at Wed, 3 Jul 2024 10:16:18 UTC No. 16265755

>>16265729
With antimatter you could get to even higher speeds than 0.1c, easily.

Anonymous at Wed, 3 Jul 2024 10:19:12 UTC No. 16265759

>>16265225
>ethical
what do you call ethical?

Anonymous at Wed, 3 Jul 2024 12:26:31 UTC No. 16265856

>spend trillions of dollars
>hundreds of years
>finally reach proxima centauri
>find fuck all there

Anonymous at Wed, 3 Jul 2024 12:39:33 UTC No. 16265865

>>16265856
Well, in this scenario, you'd probably find it already populated, which would probably be quite the shock to your worldview given how you were likely raised.

Anonymous at Wed, 3 Jul 2024 14:13:25 UTC No. 16265967

>>16265271
100 years is not out of our scope. We could achieve 40 years with a small probe at 10% LS.

Anonymous at Wed, 3 Jul 2024 14:14:49 UTC No. 16265971

>>16265327
It's our most viable option right now until FTL. Generation ships mean we don't really have to worry about speed or time as much.

Anonymous at Wed, 3 Jul 2024 16:17:06 UTC No. 16266148

>>16265971
You just need to worry if the second generation will give a damn about the mission.
(And build a technology able to sustain life for centuries in space with nothing else.)

Anonymous at Wed, 3 Jul 2024 16:25:50 UTC No. 16266154

>>16265230
>>16265351
why is it not possible?

Anonymous at Wed, 3 Jul 2024 16:49:11 UTC No. 16266173

>>16265225
>ftl
well, in this fairytale universe you could go back in time and bring back the original and intermediate crew to civilization.

Anonymous at Wed, 3 Jul 2024 16:53:56 UTC No. 16266178

>>16265967
Yeah but op was talking about a generation ship with a crew of 50.

Anonymous at Wed, 3 Jul 2024 16:55:06 UTC No. 16266180

>>16266154
The speed of light is more like the speed of causality, and photons are just able to go as fast as possible.

Anonymous at Wed, 3 Jul 2024 17:36:06 UTC No. 16266263

>>16266180
And why does that mean ftl is not possible?

Anonymous at Wed, 3 Jul 2024 17:50:45 UTC No. 16266289

>>16265225
>in 2092, a crew of 50 people embarked on a 100-year-long, one-way trip to Proxima Centauri

what will be the weight of the multigeneration spaceship which can keep a few humans alive for 100 years and keep them safe from radiation? and how will you get enough energy to accelerate that mass to 0.043c and decelerate so it can land on a planet?

Anonymous at Wed, 3 Jul 2024 19:27:17 UTC No. 16266431

>>16266263
Because you can't go faster than causality.

Anonymous at Wed, 3 Jul 2024 19:38:51 UTC No. 16266456

>>16266431
ftl doesn't violate causality though?

Anonymous at Wed, 3 Jul 2024 21:44:34 UTC No. 16266692

>>16265225
>2092
>100 YEARS TO MAKE IT
Why would they travel with anything less than 0.7 of the speed of light??? You realize there's ways to do that or what?

Even if they did it ad hoc, the nuclear propulsion goes up to 0.4. Why all you midwits insist on these shit models???

Anonymous at Wed, 3 Jul 2024 21:56:49 UTC No. 16266716

>>16266431
and since airplanes are heavier than air, it's impossible for them to fly, it's logical

Anonymous at Wed, 3 Jul 2024 22:02:20 UTC No. 16266729

It will never happen faggot. Keep dreaming.

Anonymous at Wed, 3 Jul 2024 22:39:05 UTC No. 16266782

>>16266456
Yes it does.
The "speed of light" is literally the speed of cause-and-effect.
Imagine you had a spacecraft that *could* go FTL. Let's say you take it to Proxima Centauri and get there in a day.
It takes the light from our solar system 4.25 years to reach Proxima. If you arrived in a day, you would be able to look back at Earth and see yourself, four years ago (assuming you had a magically powerful telescope). You've arrived (the effect) before the cause (you leaving at FTL speeds) has happened. From your perspective, you are now in two places at once. You'd be able to watch yourself for 4.25 years, until the light from you starting your FTL journey catches up to you. You have effectively travelled backwards in time.

Anonymous at Wed, 3 Jul 2024 22:41:18 UTC No. 16266787

>>16266716
I just fucking shit myself

Anonymous at Wed, 3 Jul 2024 22:52:32 UTC No. 16266802

>>16266787
You can't shit FTL.

Anonymous at Wed, 3 Jul 2024 23:03:04 UTC No. 16266815

>>16266802
It got everywhere

Anonymous at Wed, 3 Jul 2024 23:08:02 UTC No. 16266823

>>16266815
Fag

Anonymous at Wed, 3 Jul 2024 23:53:27 UTC No. 16266895

>>16265225
we would just send robots to do this for us. it's much cheaper, easier, ethical and money rules

Anonymous at Thu, 4 Jul 2024 00:37:09 UTC No. 16266940

>>16266895
Counterpoint, blow it out your ass

Anonymous at Thu, 4 Jul 2024 00:46:10 UTC No. 16266951

>>16266782
SoL is the refresh rate limit of the universe. But what if you could just, go around a large amount of space, rather than through it?

Anonymous at Thu, 4 Jul 2024 02:35:58 UTC No. 16267039

>>16266951
If you shove a pencil through a piece of paper right now I'll fuckin kill you

Anonymous at Thu, 4 Jul 2024 02:39:43 UTC No. 16267041

>>16265230
You should leave it to the creative people to determine what is possible and just go back to sleep

Anonymous at Thu, 4 Jul 2024 03:04:38 UTC No. 16267076

>>16267039
A real warp bubble has been created, a contained area of bent space. Granted it was very tiny and not intentionally created, but it is now only a matter of time until they figure out how to create it intentionally, and make it bigger, and then control it.

DECEMBER 6, 2021
"In an interview, White added that “our detailed numerical analysis of our custom Casimir cavities helped us identify a real and manufacturable nano/microstructure that is predicted to generate a negative vacuum energy density such that it would manifest a real nanoscale warp bubble, not an analog, but the real thing.” In other words, a warp bubble structure will manifest under these specific conditions. White cautioned that this does not mean we are near building a fully functioning warp drive, as much more science needs to be done.

“To be clear, our finding is not a warp bubble analog, it is a real, albeit humble and tiny, warp bubble,” White told The Debrief, “hence the significance.”"

Anonymous at Thu, 4 Jul 2024 03:37:44 UTC No. 16267129

>>16267076
The issue with warp bubbles is that we still have no idea how a warp bubble and the ship it contains could be accelerated past the speed of light.
We also still have no idea how to create a macro-sized warp bubble without using negative mass, and all of physics appears to indicate that negative mass does not exist. It's possible that some physicist will eventually come up with an equation for a warp bubble that doesn't need it, but there's still the first problem to contend with.

Anonymous at Thu, 4 Jul 2024 03:45:31 UTC No. 16267146

>>16267039
Lighten up, Francis.

Anonymous at Thu, 4 Jul 2024 03:47:55 UTC No. 16267149

>dude muh retarded soiyence fiction fantasy life that was implanted in my brain by hollywood!!!
>LASER SWORDS!!!
>OMG I'M GONNA TIME TRAVEL IN BLACK HOLES AND TELEPORT TO THE MULTIVERSE!!!

Anonymous at Thu, 4 Jul 2024 18:26:03 UTC No. 16267887

>>16266782
You are just watching the past you before the voyage.
It would exactly be the same as recording your life for 4 years and then watching it.

Anonymous at Thu, 4 Jul 2024 18:37:05 UTC No. 16267903

>>16265230
We aren't talking about actual FTL travel, but the premise would necessitate some way to skirt that restriction. There are a million concepts out there, any of which would be workable.

Anonymous at Thu, 4 Jul 2024 18:41:25 UTC No. 16267913

>>16266782
The cause is not the photons that bounced off of me when I was leaving. All I've done is overtake the light that shows what happened. The effect is still clearly after the cause in time.

Anonymous at Thu, 4 Jul 2024 19:23:41 UTC No. 16267961

To put it into videogame terms, the speed of light is the refresh rate of the universe, at which nothing can move faster than. But, spooky action at a distance being observed and recorded proves that information can exceed, or even ignore the speed of light, we just haven't figured out how it works yet. Its like having two voxels that copy each other instantly regardless of the space between them.

Anonymous at Thu, 4 Jul 2024 21:09:33 UTC No. 16268092

>>16267129
The nonissue with warpbubbles is that they don't have to go FtL. Say the bubble travels to Tau Ceti at 0.9 light speed; everyone in the bubble ages maybe five months, no causality is broken.

Anonymous at Thu, 4 Jul 2024 21:09:37 UTC No. 16268093

>>16267149
/sci/ is 15 year olds who grew up on capeshit and think that's le science. You can't get through to them either, they lack the cognitive capabilities to discern science from fantasy.

Anonymous at Fri, 5 Jul 2024 06:33:57 UTC No. 16268597

>>16265351
>FTL is physically impossible.
NOTHING IS IMPOSSIBLE! MAKE. YOUR DREAMS. COME TRUE.

Anonymous at Fri, 5 Jul 2024 06:35:14 UTC No. 16268600

>>16265225
>Would it be ethical to rescue the first crew?
>ethical
>ethics
This is a science board, not philosophy. GTFO.

Anonymous at Fri, 5 Jul 2024 13:03:01 UTC No. 16268913

fags

Anonymous at Fri, 5 Jul 2024 14:30:20 UTC No. 16268999

>>16266782
You never have any way of interacting with yourself though, all you are observing is what has already happened no matter how quickly you get to Proxima. You don't arrive before the cause you always arrive after, it just looks like you do to an observer on proxima. If for example you had 2 points A and B which are a light year apart, lets say an event occurs at A it would take a year for information to naturally get to B as light. Now lets say 1 hour after the event at A information about it is sent to B faster than light and it takes 1 hour for that info to get to B. From the perspective of A, the event occurs - info about it is sent an hour later to B reaches B an hour after that, and then a year later the natural info reaches B. From Bs perspective info about A arrives seemingly out of the blue and a year later B can observe the event at A. it just looks like causality is being violated, the same as when you see and hear something going faster than sound, it just appears as if causality is being violated but the event always occurs at the same time for both A and B its just information about A has been sent to B faster than light, not causality, as the event occurs on A before either A or B observe it

Anonymous at Fri, 5 Jul 2024 15:30:42 UTC No. 16269039

>>16268093
No one disputes that you can't actually travel faster than light, but if there turn out to be some way to change the position of an object with respect to time faster than if it traveled at light speed, that would be called FTL or whatever. Due to the obvious benefits of achieving that, it ought to be pursued. Not going to happen for a very very long time of course.