Also Star Trek FTL travel: What about shrooms tho?
I thought they used a space-folding engine. The drugged fish were just for navigation because they won't use AI after what happened previously.
The search for alternatives wasnt for nothing. They found out there were ramifications from the warp travel.
https://www.reddit.com/r/startrek/comments/57htyz/comment/d8s3nwr/
Oh look a post from the unnamed sites
I'll save you the click and....
The reason it was dropped is that it's simply an annoying restriction for the writers. One of the relaunch books (either Articles Of The Federation or A Singular Destiny, I can't remember which) says that the once the Enterprise crew discovered proof of the damage to subspace, pretty much every major science institute on the Federation (and many outside of the Federation) got on the problem, and within about six months (the in-universe period of time in which characters referenced the speed limitations) determined that it was a systemic design flaw in Federation warp drives. The restrictions were dropped, and ships began updating throughout known space.
Not all ships necessarily make the updates in recommended time (even within Starfleet) because of, um, various spoilery events. The problem turns up again later.
In any case, if all warp drives were really inherently damaging to subspace, the rifts would be virtually everywhere because of all the extinct civilizations that have used warp drive. While it's an interesting premise in an interesting episode, it doesn't really hold up.
Sigh-Fi
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