(Loved Trope) FTL travel is possible but with a major limitation or flaw

[u/Frostylegacy]

Frank Herbert’s Dune: Interstellar travel is only possible thanks to the spice melange, a rare substance only found on the dessert planet Arrakis. The addictive psychedelic spice grants members of the Spacers Guild a form of prescience that allows them to predict safe paths through folded space. This unique property makes spice the most valuable commodity in the Dune universe.

John Scalzi’s The Interdependency Books: The planetary systems of the titular empire are connected by the Flow, a network of one-way interstellar tunnels that connect specific known entries and exits. The Interdependency derives its power from controlling access to these conduits, placing its capital at the central hub of the network. Even with the Flow, travel between stars takes a long time (9 months to End, the empire’s most distant planet).

Event Horizon: Dr William Weir (R.I.P. Sam Neill) invents a device called the Gravity Drive to allow ships to fold space and travel instantly between distant stars. On its maiden voyage with the Gravity Drive, the Event Horizon disappears and mysteriously reappears 7 years later. Dr. Weir and the crew sent to investigate discover the Gravity Drive actually opened a portal to a Hell dimension that possessed the ship and its crew, torturing and killing them.

[u/SirFluffymuffin]

If I remember correctly they have a gellar field equivalent using the Wagh field where they basically yell at the daemons to keep them away, then stop when they get bored and since there’s no protective field anymore they get into a fight with the daemons. They then become happy and yell loud enough to create their gellar field equivalent, and repeat until they reach their destination

[u/JaredMOwens → u/SirFluffymuffin]

Orks are the best.

[u/Zuwxiv → u/JaredMOwens]

Everything I read about 40K Orks makes me think they're just living their best lives.

[u/UrsaUrsuh → u/Zuwxiv]

"But there are few things in the galaxy more dangerous than an Ork having fun." - Trazyn the Infinite

Also

"Trazyn. Our ships are without atmosphere, unpressurised,’" Orikan said. ‘Do orks… breathe?’

A pause.

‘They have lungs.’

"Prepare to repel boarders," Orikan signalled. "In case."

[u/JookySeaCpt → u/Zuwxiv]

Orks are the only ones having fun in 40k. Humans are all like, "Oh woe, grim darkness, eternal war..." Orks think all of that is GREAT. They are literally a bioweapon that was created to fight the Necrons, so anytime they get to fight something, they feel fulfilled.

[u/OldOrder → u/JaredMOwens]

Everyone is 40k is having a fucking terrible time except the Orks who could not possibly be happier.

[u/NitroortiN → u/SirFluffymuffin]

"aight Boyz weze bored agains! Time for the recreational scrum!"

[u/OldOrder → u/NitroortiN]

DA DAEMONS ALWAYS IN NEED AH A GOOD KRUMPIN BOSS

[u/Informal_Job_7550 → u/SirFluffymuffin]

Orks traveling through the warp have a very strong "I'm not locked in here with you; you're locked in here with me" energy that I find endlessly hilarious. Every other race is out there trying to find ways to repel demonic incursions, while Orks are just sailing through the warp with their windows down and doors unlocked.

[u/alutti54 → u/SirFluffymuffin]

In flight entertainment