#ftl — Public Fediverse posts

RE: https://mastodon.social/@arstechnica/117043882670053796

Take one of these things to to Moon and show me why they can't communicate FTL, to hell with your Causality! 😉

I will only entertain fringe theories on why this is the Ansible I desire....

#FTL

RE: https://mastodon.social/@arstechnica/117043882670053796

Take one of these things to to Moon and show me why they can't communicate FTL, to hell with your Causality! 😉

I will only entertain fringe theories on why this is the Ansible I desire....

#FTL

Are #WarpDrive s for #FasterThanLight travel viable?

TL;DR: "maybe"

#HamedBarzegar, #ThomasBuchert + #QuentinVigneron extensively review the peer-reviewed literature on #WarpDriveSpaceTimes, list the errors, and say that "most claims ... of physical warp drives ... [are] highly challenging to justify".

#FTL #GR #cosmology @cosmology

[1] "General formalism, classification, and demystification of the current warp-drive spacetimes" #ArXiv_2602_16495 https://arxiv.org/abs/2602.16495 #ArXiv260216495

Are #WarpDrive s for #FasterThanLight travel viable?

TL;DR: "maybe"

#HamedBarzegar, #ThomasBuchert + #QuentinVigneron extensively review the peer-reviewed literature on #WarpDriveSpaceTimes, list the errors, and say that "most claims ... of physical warp drives ... [are] highly challenging to justify".

#FTL #GR #cosmology @cosmology

[1] "General formalism, classification, and demystification of the current warp-drive spacetimes" #ArXiv_2602_16495 https://arxiv.org/abs/2602.16495 #ArXiv260216495

https://www.wacoca.com/games/1422148/ 『FTL: Faster Than Light』『Into the Breach』が65%オフのセール中 ##GAMING #FTL:FasterThanLight #Game #GameNews #games #GamingNews #IntoTheBreach #ryoyuu #steam #ゲーミング #ゲーム #ゲーム攻略 #ゲーム最新情報 #ニュース

#Pi_hole schließt sechs #Sicherheitslücken -

Die Pi-hole-Entwickler haben ein umfangreiches #Wartungsupdate veröffentlicht, das vor allem sicherheitstechnisch einiges zu bieten hat. Mit dem Release schließen die Entwickler insgesamt sechs #Security- #Advisories in den #Modulen #Core und #FTL.

https://linuxnews.de/pi-hole-schliesst-sechs-sicherheitsluecken/

#Pi_hole schließt sechs #Sicherheitslücken -

Die Pi-hole-Entwickler haben ein umfangreiches #Wartungsupdate veröffentlicht, das vor allem sicherheitstechnisch einiges zu bieten hat. Mit dem Release schließen die Entwickler insgesamt sechs #Security- #Advisories in den #Modulen #Core und #FTL.

https://linuxnews.de/pi-hole-schliesst-sechs-sicherheitsluecken/

I have rediscovered #FTL this evening, and I think this time I might really sink some time into this game.

I have always thought this looked like a game I could get into, but never gave it the time to really enjoy it.

I have rediscovered #FTL this evening, and I think this time I might really sink some time into this game.

I have always thought this looked like a game I could get into, but never gave it the time to really enjoy it.

@Priyajsridhar

#Writephant 2026.0504 — A2. Do you have a favorite work that is either set in space or a celestial body that isn’t Earth?

Plenty. Not only do I write SF, I read it. However, let's stick to media.

I love Firefly. From beginning to end, it was weirdly interesting and fun, with a pure demonstration of how to lampshade facts you really don't want to have to explain. I'm often offended when obvious science is gotten wrong, but the characters and plot lines had their own consistent logic and I went with the quirkiness.

I also loved the last series version of Battlestar Galactica, except for the very last episode. They made a think about FTL rules, and I felt they got the military milieu exceptionally well, with the robotics explained well enough to make it all consistent and believable—except for the very end where the story went so far off the rails, it launched the locomotive directly to high orbit. Otherwise, good SF, showing how technology affects humans.

I'll give a shout out to Babylon 5 for mixing idealism and multiculturalism in a way much better than most TV SF ever did.

#Firefly #Babylon5 #BattlestarGalactica #FTL

[Author retains copyright (c)2026 R.S.]

#BoostingIsSharing

#gender #fiction #writer #author
#cozy #mystery #thriller #romance #fantasy #sf #sff #sciencefiction
#writing #writingcommunity #writersOfMastodon #writers
#RSdiscussion

@Priyajsridhar

#Writephant 2026.0504 — A2. Do you have a favorite work that is either set in space or a celestial body that isn’t Earth?

Plenty. Not only do I write SF, I read it. However, let's stick to media.

I love Firefly. From beginning to end, it was weirdly interesting and fun, with a pure demonstration of how to lampshade facts you really don't want to have to explain. I'm often offended when obvious science is gotten wrong, but the characters and plot lines had their own consistent logic and I went with the quirkiness.

I also loved the last series version of Battlestar Galactica, except for the very last episode. They made a think about FTL rules, and I felt they got the military milieu exceptionally well, with the robotics explained well enough to make it all consistent and believable—except for the very end where the story went so far off the rails, it launched the locomotive directly to high orbit. Otherwise, good SF, showing how technology affects humans.

I'll give a shout out to Babylon 5 for mixing idealism and multiculturalism in a way much better than most TV SF ever did.

#Firefly #Babylon5 #BattlestarGalactica #FTL

[Author retains copyright (c)2026 R.S.]

#BoostingIsSharing

#gender #fiction #writer #author
#cozy #mystery #thriller #romance #fantasy #sf #sff #sciencefiction
#writing #writingcommunity #writersOfMastodon #writers
#RSdiscussion

Book Promotion: Science Fiction & Fantasy holiday special

A collection of 106 #books for you to download free and enjoy

#spaceship #magic #aliens #legendary #fedibookfair #military #boost #amreading #writing #dwarfs #readers #rogue #heroes #knights #reading #goodbooks #space #ladies #time #dwarves #dystopia #sorcery #monsters #futurism #planets #sciencefiction #science #scifi #writing #young #newadults #teen #teens #ya #books #booktoot #bookfunnel #free #ftl

https://books.bookfunnel.com/scififantasy202604/dafylv7fb0

Book Promotion: Science Fiction & Fantasy holiday special

A collection of 106 #books for you to download free and enjoy

#spaceship #magic #aliens #legendary #fedibookfair #military #boost #amreading #writing #dwarfs #readers #rogue #heroes #knights #reading #goodbooks #space #ladies #time #dwarves #dystopia #sorcery #monsters #futurism #planets #sciencefiction #science #scifi #writing #young #newadults #teen #teens #ya #books #booktoot #bookfunnel #free #ftl

https://books.bookfunnel.com/scififantasy202604/dafylv7fb0

RE: https://bolesblogs.com/2026/04/19/below-the-mesh/

Two things I've always thought about the Fermi Paradox
1) We don't know what technology They use, so it's just guesswork as to what we're looking for. A bit presumptuous to write off the whole Universe as empty.
2) The Universe is BIG and we're barely explored it yet, we've only been listening for radio for about a 100 Earth years, that's nothing in this big old universe. And who wants to communicate at the Speed of Light?

#FermiParadox #SETI #Physics #FTL

RE: https://bolesblogs.com/2026/04/19/below-the-mesh/

Two things I've always thought about the Fermi Paradox
1) We don't know what technology They use, so it's just guesswork as to what we're looking for. A bit presumptuous to write off the whole Universe as empty.
2) The Universe is BIG and we're barely explored it yet, we've only been listening for radio for about a 100 Earth years, that's nothing in this big old universe. And who wants to communicate at the Speed of Light?

#FermiParadox #SETI #Physics #FTL

I remember watching this 10 years ago when #FTL came out
https://youtu.be/RVHw5Hcat9s

I think I was subscribed to Doormonster ten years ago. But then unsubscribed at some point and then resubscribed last year when she started making those great video essays (check recent videos)

I remember watching this 10 years ago when #FTL came out
https://youtu.be/RVHw5Hcat9s

I think I was subscribed to Doormonster ten years ago. But then unsubscribed at some point and then resubscribed last year when she started making those great video essays (check recent videos)

Book Promotion: Science Fiction & Fantasy holiday special

A collection of 106 #books for you to download free and enjoy

#spaceship #magic #aliens #legendary #fedibookfair #military #boost #amreading #writing #dwarfs #readers #rogue #heroes #knights #reading #goodbooks #space #ladies #time #dwarves #dystopia #sorcery #monsters #futurism #planets #sciencefiction #science #scifi #writing #young #newadults #teen #teens #ya #books #booktoot #bookfunnel #free #ftl

https://books.bookfunnel.com/scififantasy202604/dafylv7fb0

Book Promotion: Science Fiction & Fantasy holiday special

A collection of 106 #books for you to download free and enjoy

#spaceship #magic #aliens #legendary #fedibookfair #military #boost #amreading #writing #dwarfs #readers #rogue #heroes #knights #reading #goodbooks #space #ladies #time #dwarves #dystopia #sorcery #monsters #futurism #planets #sciencefiction #science #scifi #writing #young #newadults #teen #teens #ya #books #booktoot #bookfunnel #free #ftl

https://books.bookfunnel.com/scififantasy202604/dafylv7fb0

'We have been lurking in cloaked ships out by Jupiter for approximately seventy five earth years, watching.'

That long huh?

'Yes. We felt that you would... should be able to figure your problems out and come together as a species. Then we would make oursleves known and give you #fusion, #hoverboards and #FTL travel.'

Ah, like the #PrimeDirective from #StarTrek.

'Yes.'

So what changed, why now?

'This'

https://truthsocial.com/@realDonaldTrump/116351998782539414

#potus

'We have been lurking in cloaked ships out by Jupiter for approximately seventy five earth years, watching.'

That long huh?

'Yes. We felt that you would... should be able to figure your problems out and come together as a species. Then we would make oursleves known and give you #fusion, #hoverboards and #FTL travel.'

Ah, like the #PrimeDirective from #StarTrek.

'Yes.'

So what changed, why now?

'This'

https://truthsocial.com/@realDonaldTrump/116351998782539414

#potus

"[…] this [is] to enable a “seamless travel experience”, while also giving the #ukgov “greater power to stop those who pose a threat from setting foot in the country and gives us a fuller picture of immigration.”

Yes, of course #ftl #dysfunctional #bollocks

https://www.theguardian.com/politics/2026/mar/21/british-teenagers-stranded-abroad-dual-national-rules-home-office-passports

"[…] this [is] to enable a “seamless travel experience”, while also giving the #ukgov “greater power to stop those who pose a threat from setting foot in the country and gives us a fuller picture of immigration.”

Yes, of course #ftl #dysfunctional #bollocks

https://www.theguardian.com/politics/2026/mar/21/british-teenagers-stranded-abroad-dual-national-rules-home-office-passports

#AppleMaps walking directions are rubbish. I tried using them in Brighton, and they failed me each time. I always knew more direct route. It's as if they follow car directions. #ftl

#AppleMaps walking directions are rubbish. I tried using them in Brighton, and they failed me each time. I always knew more direct route. It's as if they follow car directions. #ftl

I can literally scream "Auxillary power to the shields!" and it means something in #FTL <3

I can literally scream "Auxillary power to the shields!" and it means something in #FTL <3

#PiHole soll jetzt schlanker und schneller sein.

FTL importiert nun historische Abfragen beim Start asynchron aus der Datenbank. Bisher wurde die DNS-Auflösung blockiert, bis der gesamte Abfrageverlauf in den Speicher geladen war. Jetzt nimmt FTL DNS-Abfragen sofort entgegen und importiert den Verlauf in einem dedizierten Hintergrund-Thread. Der Garbage Collector wird bis zum Abschluss des Imports zurückgehalten, um die Datenkonsistenz sicherzustellen.

#news #dns #performance #ftl #pihole #db #adblocker #blog #linux #werbeblocker

https://pi-hole.net/blog/2026/02/17/pi-hole-ftl-v6-5-web-v6-4-1-and-core-v6-4-released/

#PiHole soll jetzt schlanker und schneller sein.

FTL importiert nun historische Abfragen beim Start asynchron aus der Datenbank. Bisher wurde die DNS-Auflösung blockiert, bis der gesamte Abfrageverlauf in den Speicher geladen war. Jetzt nimmt FTL DNS-Abfragen sofort entgegen und importiert den Verlauf in einem dedizierten Hintergrund-Thread. Der Garbage Collector wird bis zum Abschluss des Imports zurückgehalten, um die Datenkonsistenz sicherzustellen.

#news #dns #performance #ftl #pihole #db #adblocker #blog #linux #werbeblocker

https://pi-hole.net/blog/2026/02/17/pi-hole-ftl-v6-5-web-v6-4-1-and-core-v6-4-released/

#Pi_hole erhält #Update mit mehr Tempo und besserer Sicherheit - #fosstopia

Die Entwickler von #Pi_hole haben eine neue Version veröffentlicht. Der #Core #Stack steigt auf 6.4, das #Web #Interface auf 6.4.1 und #FTL auf 6.5. Nutzer von #Docker #Images greifen zur Ausgabe mit dem Tag 2026.02.0. Vor dem Update empfiehlt sich wie immer ein #Backup der eigenen Einstellungen. Der #Teleporter sollte dafür erste Anlaufstelle sein und erledigt das schnell und zuverlässig.

https://fosstopia.de/pihole-core-6-4/

#Pi_hole erhält #Update mit mehr Tempo und besserer Sicherheit - #fosstopia

Die Entwickler von #Pi_hole haben eine neue Version veröffentlicht. Der #Core #Stack steigt auf 6.4, das #Web #Interface auf 6.4.1 und #FTL auf 6.5. Nutzer von #Docker #Images greifen zur Ausgabe mit dem Tag 2026.02.0. Vor dem Update empfiehlt sich wie immer ein #Backup der eigenen Einstellungen. Der #Teleporter sollte dafür erste Anlaufstelle sein und erledigt das schnell und zuverlässig.

https://fosstopia.de/pihole-core-6-4/

@farbel
We CAN write SF that obeys the laws of physics. Andy Weir (The Martian and others) does it extremely well, but for the most part it does rely on the willing suspension of disbelief. Where would we be without time travel and warp drives? 😁

#ScienceFiction #FTL #WritersCoffeeClub

@farbel
We CAN write SF that obeys the laws of physics. Andy Weir (The Martian and others) does it extremely well, but for the most part it does rely on the willing suspension of disbelief. Where would we be without time travel and warp drives? 😁

#ScienceFiction #FTL #WritersCoffeeClub

#WritersCoffeeClub #Physics #Aliens #FTL #ScienceFiction

Bonus question from me to science fiction writers:

I have been watching various videos by renowned physicists detailing in very understandable terms why we haven't and *won't meet aliens, and why interstellar travel isn't possible. I'll link to a couple at the end. My question for you, and for me, is can we write science fiction that abides by the laws of physics?

https://youtu.be/UKWgu_AMdik?si=Ze2cNg5v4R2e501s

https://youtu.be/X1gE6O9qstw?si=OtiBeny3EuXSWbOZ

#WritersCoffeeClub #Physics #Aliens #FTL #ScienceFiction

Bonus question from me to science fiction writers:

I have been watching various videos by renowned physicists detailing in very understandable terms why we haven't and *won't meet aliens, and why interstellar travel isn't possible. I'll link to a couple at the end. My question for you, and for me, is can we write science fiction that abides by the laws of physics?

https://youtu.be/UKWgu_AMdik?si=Ze2cNg5v4R2e501s

https://youtu.be/X1gE6O9qstw?si=OtiBeny3EuXSWbOZ

Also my favorite diagram so far, illustrating what happens when you jump out of the John Hancock Tower (i.e., the version we built out of accelerating ships that has fake gravity):

#physics #ftl #relativity #scienceed

Also my favorite diagram so far, illustrating what happens when you jump out of the John Hancock Tower (i.e., the version we built out of accelerating ships that has fake gravity):

#physics #ftl #relativity #scienceed

Part 6
https://wrog.dreamwidth.org/72287.html

in which, having established what (little) math we actually need, we get to the truly fun part:

How constant acceleration works
a.k.a.
What you need to know re
Faking Gravity in Special Relativity.

It is **a** **lot** weirder than you would expect.

Light shining up or down gets Doppler-shifted.

Gravity increases as you go downstairs, but you'll live longer.

There are event horizons.

And one year downstairs is the Infinite-Gravity Horror Show where time comes to a complete stop... or something...

#physics #relativity #ftl #scienceed

https://mastodon.murkworks.net/@wrog/116054745477223253

Part 6
https://wrog.dreamwidth.org/72287.html

in which, having established what (little) math we actually need, we get to the truly fun part:

How constant acceleration works
a.k.a.
What you need to know re
Faking Gravity in Special Relativity.

It is **a** **lot** weirder than you would expect.

Light shining up or down gets Doppler-shifted.

Gravity increases as you go downstairs, but you'll live longer.

There are event horizons.

And one year downstairs is the Infinite-Gravity Horror Show where time comes to a complete stop... or something...

#physics #relativity #ftl #scienceed

https://mastodon.murkworks.net/@wrog/116054745477223253

Part 5:
https://wrog.dreamwidth.org/71989.html
about how to transform between Moving and Stationary People coordinates (Lorentz transformations) and what velocity angles are (they're like rotation angles, but different)

(trying to make this accessible to folks who haven't seen a whole lot of linear algebra [though, as I recall, I *did* know about matrices in 6th grade;... thought they were cool..)

#physics #relativity #ftl #scienceed

Part 5:
https://wrog.dreamwidth.org/71989.html
about how to transform between Moving and Stationary People coordinates (Lorentz transformations) and what velocity angles are (they're like rotation angles, but different)

(trying to make this accessible to folks who haven't seen a whole lot of linear algebra [though, as I recall, I *did* know about matrices in 6th grade;... thought they were cool..)

#physics #relativity #ftl #scienceed

Am I correct in saying the #starTrek universe has a better explanation/integration of #ftl travel than the #starWars universe?

From what I can see, SW has no clear plotting,
Whereas St we have alpha etc divided by quadrants

Travel from one to the other, etc.

But I don't see much more than à magic trick for light speed in sw

Am I correct in saying the #starTrek universe has a better explanation/integration of #ftl travel than the #starWars universe?

From what I can see, SW has no clear plotting,
Whereas St we have alpha etc divided by quadrants

Travel from one to the other, etc.

But I don't see much more than à magic trick for light speed in sw

I of course goofed and left out the explanation of Lorentz Contraction from the obvious place in Part 3 where I should have talked about it.

So I've slotted it in here:
https://wrog.dreamwidth.org/71271.html#hrel3_lorentz
along with a new diagram to make super-clear what's happening.

Or if you want to get the flow/parallelism there's now this link https://wrog.dreamwidth.org/71271.html#hrel3_timedil
to the earlier time dilation discussion (cleaned up a bit), since that's really the same issue but turned on its side 90°.

So maybe the Stargate SG-1 example will be clearer now. or maybe not
(the point of the blue arrows is this is the kind of shit you can do if you have stargates: A Completely Easy Time Machine they'd have built half-way thru season 2)

#relativity #physics #ftl #scienceed

I of course goofed and left out the explanation of Lorentz Contraction from the obvious place in Part 3 where I should have talked about it.

So I've slotted it in here:
https://wrog.dreamwidth.org/71271.html#hrel3_lorentz
along with a new diagram to make super-clear what's happening.

Or if you want to get the flow/parallelism there's now this link https://wrog.dreamwidth.org/71271.html#hrel3_timedil
to the earlier time dilation discussion (cleaned up a bit), since that's really the same issue but turned on its side 90°.

So maybe the Stargate SG-1 example will be clearer now. or maybe not
(the point of the blue arrows is this is the kind of shit you can do if you have stargates: A Completely Easy Time Machine they'd have built half-way thru season 2)

#relativity #physics #ftl #scienceed

Part 4:
https://wrog.dreamwidth.org/71432.html

#physics #relativity #ftl #scienceed

On the Storrow Drive Theorem

This is on how, having developed how one does spacetime for a 1-dimensional universe, how you put back the 2nd and 3rd spatial dimensions,

and the key question is what happens when you have college students attempting to measure the height of a bridge using rental trucks,

i.e., what differences are there in how the Moving People see it vs. how the Stationary People see it. Do the Moving People see a different height? Or see the truck slanted weirdly? Curiously, the answer to both of these turns out to be NO.

And we have this fun diagram

Part 4:
https://wrog.dreamwidth.org/71432.html

#physics #relativity #ftl #scienceed

On the Storrow Drive Theorem

This is on how, having developed how one does spacetime for a 1-dimensional universe, how you put back the 2nd and 3rd spatial dimensions,

and the key question is what happens when you have college students attempting to measure the height of a bridge using rental trucks,

i.e., what differences are there in how the Moving People see it vs. how the Stationary People see it. Do the Moving People see a different height? Or see the truck slanted weirdly? Curiously, the answer to both of these turns out to be NO.

And we have this fun diagram

Part 3:
https://wrog.dreamwidth.org/71271.html

…introduce the _Interval_ between two events

= (Δz, spatial separation)² − (Δt, time lapse)²

and show that this number is an **invariant**, i.e., all slower-than-light observers get the same result calculating this in their own coordinates.

Magic diagram (with ALT text!) below proves this for Moving (upwards) vs. Anti-Moving (downwards, same speed) observers (i.e., using that Intermediate POV from before), and go from there.

Interval is either
(*) (proper distance)² > 0 [events are simultaneous for somebody],
(*) −(proper time)² < 0 [events are co-located for somebody], or
(*) zero [light-speed trajectory]

and then we do Twin Paradox and How FTL Violates Causality.
#physics #relativity #ftl #scienceed

Part 3:
https://wrog.dreamwidth.org/71271.html

…introduce the _Interval_ between two events

= (Δz, spatial separation)² − (Δt, time lapse)²

and show that this number is an **invariant**, i.e., all slower-than-light observers get the same result calculating this in their own coordinates.

Magic diagram (with ALT text!) below proves this for Moving (upwards) vs. Anti-Moving (downwards, same speed) observers (i.e., using that Intermediate POV from before), and go from there.

Interval is either
(*) (proper distance)² > 0 [events are simultaneous for somebody],
(*) −(proper time)² < 0 [events are co-located for somebody], or
(*) zero [light-speed trajectory]

and then we do Twin Paradox and How FTL Violates Causality.
#physics #relativity #ftl #scienceed

I also really like how this diagram came out.

It's another spacetime-with-left-to-right-time grid from the stationary observer POV, showing trajectories of
(*) the stationary observer,
(*) the (velocity v) moving observer, and
(*) all possible in-between trajectories
+
how the two observers measure velocities
+
how the two observers will **not** agree on which trajectory is going v/2
+
how the One True Intermediate Trajectory
(i.e., the one that both see going the same speed) is between the v/2 trajectories **and** seen by both observers as going **faster** than v/2.

...this being the Big Red Flag that velocities don't add the way you'd think.

(also spelled out more fully in Part 2)

#physics #relativity #ftl #scienceed

I also really like how this diagram came out.

It's another spacetime-with-left-to-right-time grid from the stationary observer POV, showing trajectories of
(*) the stationary observer,
(*) the (velocity v) moving observer, and
(*) all possible in-between trajectories
+
how the two observers measure velocities
+
how the two observers will **not** agree on which trajectory is going v/2
+
how the One True Intermediate Trajectory
(i.e., the one that both see going the same speed) is between the v/2 trajectories **and** seen by both observers as going **faster** than v/2.

...this being the Big Red Flag that velocities don't add the way you'd think.

(also spelled out more fully in Part 2)

#physics #relativity #ftl #scienceed

Part 2:
https://wrog.dreamwidth.org/71156.html

In some ways, the following diagram is the whole ball of wax, essentially summarizing why the moving observer will *not* agree with stationary observer on simultaneity of events.

It's a spacetime diagram with time going left to right, depicting someone moving upwards (black line), bouncing a light ray off of a reflector above/below them (yellow lines).

If you get what's going on here, why the moving person''s '"snapshot" (blue line) of what's going on Right Now cannot be vertical (i.e., aligned with the stationary person's snapshots), you can derive everything else.

(see the full post for the actual argument)

#physics #relativity #ftl #scienceed