I Think Faster Than Light Travel is Possible. Here's Why.

YouTube ^ | April 8, 2023 | Sabine Hossenfelder

[SunkenCiv]

If you've been following my channel for a really long time, you might remember that some years ago I made a video about whether faster-than-light travel is possible. I was trying to explain why the arguments saying it's impossible are inconclusive and we shouldn't throw out the possibility too quickly, but I'm afraid I didn't make my case very well. This video is a second attempt. Hopefully this time it'll come across more clearly!

I Think Faster Than Light Travel is Possible. Here's Why. | 23:46
Sabine Hossenfelder | 943K subscribers | 1,569,919 views | April 8, 2023

[BipolarBob]

Going FTL is only theoretical (right now) and it is done in massless or nearly massless objects. Anything larger than a grain of sand becomes exponentially problematic in energy terms

[BipolarBob]

At speed of light, how would one develop a collision avoidance system to not crash into meteors and other space objects?

It wouldn't matter. You'd never know it. You'd be dead before your brain could process it.

[steve86]

Not crashing into meteors is easy once you’re outside the atmosphere. They don’t exist out there. And you can go light years without encountering other objects.

[Deaf Smith]

>>It wouldn't matter

Yes, because the electron processing speed of your computer avoidance system is no match for the speed of light.

[ElkGroveDan]

“Sabine Hossenfelder (born 18 September 1976) is a German author and theoretical physicist who researches quantum gravity. She is a Research Fellow at the Frankfurt Institute for Advanced Studies where she leads the Superfluid Dark Matter group.”

Then she should be publishing her theories in academic journals showing the detailed calculations that allowed her to reach these conclusions.

[sasquatch]

With all that school work, you’d think she’d get it.

[al baby]

yet!!!

[gundog]

I’ll just stick to trans-dimensionsl travel, thanks.

[FatherofFive]

She's a reliable source (and she discussed this). You're not.

What about the math? Do you disagree with the numbers? Facts are hard things.

[Deaf Smith]

Okay, small body of matter.

*I picked up a 1 lb meteorite at a ranch.

My masters degreed (education) sister asked how I was able to find a meteor.

Told her I’m not good enough to catch a meteor, but I can pick up a meteorite.

She had a puzzled look on her face.

[Big Red Badger]

Higgs-field to the Big Bang
Got my motor running!!!
Thanks for the heads up FRiend.
.
Speed of Light travel?
Ain’t in a big rush no more.
.
Itsy Bitst Spider...
.
Back to Cat videos.

[Auntie Dem]

An object in motion tends to stay in motion. An object at rest tends to stay at rest.

Once I’m in bed, I tend to stay in bed. When my wife carps at me I reply: Who am I to defy Newton?

[algore]

you cannot without utterly annihilating what is in your path, and that was the premise of tau zero.

but folding space is how that may work. I said I believe that if the happens time is also recalibrated.

we know gravity fields can do this, and I have of some other interesting theories and unexpected experiments

[Secret Agent Man]

The only way I see to do ftl is warping space-time. Even so, the energy requirements would still be staggering.

[FrozenAssets]

Who would want to go faster than light anyway? You hat would blow off. You’d get pulled over by the galactic troopers. “Hey Buddy! What’s the big idea breaking the laws of the universe?” Don’t forget! 300,000,000 meters per second. It’s the law!

[TheCipher]

Mathematically it is possible to travel faster than the speed of light by using the imaginary number i, which is the square root of negative 1 in the equations. That is used everyday in other processes such as the air traffic control system. It wouldn’t work without it.

[The Louiswu]

Perhaps if we reduced the mass of a space ship to that of a pea somehow, accelerating that to some ludicrous speed would be a lot easier. FTL, I doubt it, get north of 50% of C, maybe.

[3ZZZ]

I’ve wondered about that for a long time. (No pun intended) Was time established before God started creation, or was it added in as He called out the first day and so on?

[dr_lew2]

Using Special Relativity, any constant acceleration places “you” ( or the accelerated object ) on a hyperbolic trajectory wrt any inertial frame of reference.

So, a laser beam, say, turned on at time “t=0” , when you begin accelerating and placed at a certain distance “behind” you, will never catch you ... i.e. you will never see it, even though you never exceed “c” in this frame.

It’s all simple algebra.

[Tellurian]

Take it with a grain of salt, but I get 36 days.