Whaaaaaaat ? But , but , but , but the materials are so hard to get ! After all , it ' s not as if deuterium is just a relatively common isotope of literally the most common element in the universe ! And it would be faaaaar too hard for a bleeding edge starship carrying replication and fabrication technology to put that obviously so very rare starship fuel into the space equivalent of a tin can . Clearly the only one in all the galaxy capable of producing this rare and valuable commodity is a Ferengi running a rundown hodgepodge space station in the middle of nowhere space . Yea , I wish we could craft it too . I haven ' t been to Alhena in ages , too out of the way . Isn ' t this exact thing the very reason pretty much every ship from Starfleet , the KDF , the RRN , and pretty much every other navy in the galaxy have Bussard collectors or some equivalent thereof ?