[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

View post   
File: 15 KB, 100x125, Would you kindly Jack.png [View same] [iqdb] [saucenao] [google]
7195662 No.7195662 [Reply] [Original]

Would you kindly explain how humanity could invent FTL Engines in the next 80 years?

>> No.7195676

>total fucking babe carribean avatar without the monsters planet is found with flying mountains

>scientists give billionaires an estimate of how to get there

>hey, this is actually doable

>get private funding

>privatized spaceship there

>governments can go fuck themselves, along with rest of humanity

>> No.7195681

We couldn't.

>> No.7195687

>>7195662
A giant beak-through in our understanding of physics would do it.

Next pointless fucking question, plz.

>> No.7195690

>>7195687
>Next pointless fucking question, plz.
Would you kindly, explain what this break though in physics would be?

>> No.7195699

>>7195662
This would require developments in a wholly undiscovered field of Physics, I'm not sure that we're able to predict if/when scientific breakthroughs will occur. I think it's not feasible, especially since you need the appropriate technology to accompany ftl travel
>advanced materials able to withstand ridiculously harsh environments
>$$$$$
>Getting ftl to the macro scale, we'll most probably invent ftl for really small particles first.

>> No.7195719

Find out a way to create negative energy densities on a large scale, master fusion power and then build a fusion powered ship with an Alcubierre drive. You won't live to see it happen.

>> No.7195721

>>7195662
It will never, ever happen.
Only way you can reasonably account for the Fermi paradox, imo.

>> No.7195772

>>7195690
Magic.

>> No.7195949

>>7195690
Wizardry

>> No.7196508

>>7195690
No because if I knew then we'd be in space dumbass

>> No.7196522

>>7195662
You can't accelerate to the speed of light.

>> No.7196532

>>7195690
we'd have to discover how to essentially make an object have negative mass

>> No.7196552

I like my sci-fi as much as anyone, but we need to stick to babby's first rocketry for a while and wait while the good people at CERN figure out how to make exotic matter.

>> No.7196554

>>7195662
Russia under Tsar Puttin becomes communist again and it all ends up in the World War IV.
...
The world reverts to the middle ages and then to middle earth.
...
Gandalf invents the first FTL drive so that the Elves can leave.

>> No.7196555

>>7195662
>FTL Engines in the next 80 years?
Do we need to?

A near light ship will subjectively travel faster than light compared to the rest frame.

>> No.7196572

>>7195662
Under currently known physics, there's no way we could do that.

Any form of FTL travel consistent with relativity as we know it would require the ability to create exotic mass-energy states - of which "negative mass" is the simplest.

If we did have this, though, we still could not plausibly develop FTL engines in the next 80 years, because even the lowest-energy metrics would require absolutely insane energy requirements compared to anything we could produce.

The only way we'll develop FTL in the next 80 years is if we turn out to be totally wrong about existing physics in a way that makes FTL easy.

>> No.7196583

>>7196552
Underrated explanation.

>> No.7196588

>>7196572
>The only way we'll develop FTL in the next 80 years is if we turn out to be totally wrong about existing physics in a way that makes FTL easy.

How the hell could this even happen?

I don't see people willing to admit they're wrong after following a certain path for years.

>> No.7196590

>>7196588
What is the scientific method
Srsly if we find quick and easy ftl that fucks up physics, then fuck physics, study the ftl shortcut and make better physics

>> No.7196596

>>7196588
80 years ago was just after the rise of both quantum mechanics and relativity - and the theories those overturned had been in place for over a century.

It's happened before.

>> No.7196619

>>7196596
3 centuries, and longer.

FTL would have to over turn all of that though. Quantum Mechanics and Relativity build upon mechanics, and very precisly reduce down to classical mechanics (maxwell and newton) at their limits. Being able to travel faster than light would mean all Maxwell (Faraday, Gauss, and the rest, along with Einstein) was fundamentally incorrect in some way. And, well, I mean, look around you. Newtonian mechanics works incredibly well in describing our everyday lives, Maxwell's equations fit electric currents, quantum mechanics explains chemistry and relativity fits the planets. All of that would need to be fundamentally wrong some how.

>> No.7196632

>>7196619
Well what about an Alcubierre drive.
There are reasonably old ideas which are compatible with the laws of modern physics which could make FTL a possibility. There's even a paper by NASA: Warp Field Mechanics 101

>> No.7196641

>>7195721
>Only way you can reasonably account for the Fermi paradox, imo
even if the best you can ever do is the tech we have now the fermi paradox is still paradoxical.

>> No.7196643

>>7196619
Er, you do know that general relativity allows for FTL just fine? It only forbids FTL locally; there's no global prohibition. Metrics that allow for FTL (Krasnikov tubes, Alcubierre drives, wormholes) in a manner totally consistent with relativity have been known for ages. And there's no actual law of physics that prevents exotic matter from existing.

Physics is just fine with FTL travel so long as it doesn't involve anything moving faster than light in its own reference frame.

>> No.7196645

>>7196643
(Okay, correction - there's no *known* law of physics. There might very well be some reason it totally can't exist, although cosmic inflation, dark energy, and the Casmir effect are all counterexamples to that.)

>> No.7197801

>>7196572
>>7196588
>>7196596
>>7196590

it happened thousands of years ago & they already exist in use by humans & aliumz todAY DIPWADZ!#21!!

>> No.7197838

The problem is that any way that violates faster than light, even the ways mentioned in
>>7196643
>>7196645
still lets a global violation of FTL and therefore can violate causality. Anyone going FTL can go back in time and kill themselves and other paradoxes. Well, at the very least:

1. General Relativity is right
2. FTL can exist
3. Causality is true

Pick only 2.

>> No.7197869

>>7195662
Step 1: show that causality can be broken or relativity is wrong(IE privileged reference frames or something). With relativity, ANY FTL is equivalent to time travel. Problem is relativity seems to be pretty solid and breaking causality pretty much breaks physics too

Step 2: Come back when you have completed step 1

Further steps likely require a theory of quantum gravity and ways to generate and manipulate large negative energy densities.

>> No.7197942
File: 157 KB, 830x949, hahah what the fuck.png [View same] [iqdb] [saucenao] [google]
7197942

Everything is Phi. C'mon, now.

>> No.7197983

>>7197869
>>7197838
How would wormhole travel(all its other inconsistencies aside) break causality?

>> No.7197985

https://www.youtube.com/watch?v=Va4YtsZJ_F8

>> No.7198014

>>7195662
Step 1: Stop shit posting on /sci/ and leave 4chan forever

Step 2: Study physics

Step 3: Invent FTL Engine

>> No.7199064

>>7197838
>Anyone going FTL can go back in time and kill themselves and other paradoxes.

Or the block model of the universe is true.