Comment by protocolture
16 hours ago
The issue is, and I believe the authors talk about this, is that the fusion torches they use are absolutely plausible, the problem is that theres no way those ships hold enough fuel for those trips, ripping the engines back out of plausibility again.
Right, they hand-wave this away with the "Epstein Drive"[0] (a name which I suppose has not aged well), which appears to somehow run on orders of magnitude less propellent than seems realistically possible.
[0] https://expanse.fandom.com/wiki/Epstein_Drive