freitasm: Interesting episode but... The physics of the travel don't pan out really. Biology and physics?
And why don't we see this form of transportation in series set after Discovery? I'm guessing they decide that it's not fair to force the monster thingie to be a navigator and so stop using it.
Plausible. IIRC there's an episode of TNG where they find out that by traveling over warp 10 (or something up there) that there's a life form that exists in the space that's created by a warp field (or something like that) which is harmed by going that speed so they make it illegal to go above warp 9 (or something like that).