Addendum

The captain's job will of course to be handsome and invite people to dinner. It's not like there will be much else to do in space. "Captain, we had to wake you! Something came up!" Nothing will come up.

The Psychology of Space Travel

In the future when we (and I do mean we, radical-life-extension brothers and sisters) can enjoy leisurely spaceship cruises, will the captain sometimes mess with the temperature because people get all weird when the weather's too constant? No. It will be a separate officer whose job that is.

The Impracticality of Space Battle

Given the industrial capacity of interstellar empires, they'll run out of cities after which to name their ships, and then what?

The Impracticality of Space Travel

When people are on their big spaceliners and such, how are they going to get the paper delivered? Hyper-fast delivery boys earning their first Federation credits? Probably, yeah, now that I think about it.

Addendum

A major factor will be if the ships dock at a planet, an orbital station, or neither, instead sitting in deep space and receiving their passengers from shuttles. In the case of the station, probably a plain exterior will be demanded by the port authority, but in the third case, presenting customers with an awesome view during their approach will be advisable.

It's Never Too Early to Start Planning

When we have big interstellar cruise liners, will it be worth it to paint the exterior, or will people not care about the part they can't see? Or will they see it through drones set up so there can be races on the hull for gambling purposes, given that in space, anything goes? Only market research can determine the truth.

Upcoming Job Opportunities

Soon we'll all have productive work throwing pails of water on people to simulate rain in ships and colonies so that we don't succumb to space madness. Innovators will get ahead by finding ways to get people to sneeze during terrestrial allergy season and rig sirens to play during simulated night.

Mobile Urban Fantasy

So in spaceships so large they have internal cities, do you think each has vampires and werewolves and such, or just one kind each? It would be easier for a secret society to keep control over entry, but on the other hand, they might not care as much, especially if they can combine their abilities to resist alien infiltration.

An Argument Against Orbital Bombardment

If your doomships can even achieve orbit, your space empire isn't cool enough. Quite frankly, planets should be orbiting them.

Addendum

Your Jabberjaw revival could benefit as well.

Classic Inspiration

Have you ever noticed how many old detective stories that aren't murder-based are about attempted thefts of torpedo plans? In the distant, spacefaring future, the same may well occur.

Undeniable Evidence of Something

"Humanity has settled one hundred twelve planets at the last official count and yet the bulk of us live on eight planets. The population of most planets does not exceed ten million. I'll leave ideas about incentives, forced emigration, inefficiency, medical prioritization, homogenization, etc. to others. We have to deal with ramifications, not policies.
"Transportation has never been more desired. A grandmother from Podunk III goes shopping on Bazaar Prime and relaxes with tea on Cheap and Classy VI; that's what people expect today. A commute between Mine World and Apartment World might take less time than two cities on Earth, on the same continent, in the same time zone.
"This isn't news. It isn't something the market has remained ignorant of. There are countless companies scrabbling for these passengers. How does anyone stand out? How do we stand out?
"Our new interstellar liner is our answer. What does it offer? Animal sacrifice. You can see the labels where the pens and the altar are seated. Passengers can enjoy the standard service and even pay for extra ceremonies up to the great hecatomb. Or, if they're worried more about the end than the middle, they can call on our registered haruspices to get an inkling of the future."
Shares of McHale Transportation dipped 27% upon the announcement. A year later, when safety statics compiled by governments, industry observers, and hobbyist groups were reviewed, share prices not only recovered but soared. Moreover, people began to talk seriously.
Finis

The Zoo of Mankind's Yearning

We limped away from the encounter fortunate only by comparison.. The Yuengians, who style themselves independently minded but are in fact pirates, suffered what they intended for us and what still might transpire, unable to resume our course as we were.
Our researches yielded a planet nearby which was registered as habitable. We could do no better. The prospect improved upon approach when we detected signs of not just potential but the thing itself: A vast compound existed near an artifically regular lake easily capable of accommodating our entire convoy.
The job of trying to raise the inhabitants devolved to me based on the reasoning that many who closed their doors to regular strangers opened them for correspondents, particularly ones as famous as the captains pretended me to be. My rejoinder that the opposite often pertained did not win me free from the responsibility. I proved, not the respect accorded my profession, but to have some small knowledge of interstellar celebrity when I recognized Herzerd Klobsarn, the genuinely famous gene theorist. Nor was he displeased at the recognition; in that at least I may have aided my fellow survivors a little.
Klobsarn provided hospitality far beyond the most optimistic projection. The many empty furnished rooms, he said, had been used by laborers who had long since departed. He had seen no reason to bother with tearing down the surplus quarters, negligence which seemed to us a miracle. He maintained stores such as sufficed to feed us and effect repairs out of what he described as two excesses, one of caution and the other of curiosity, for his projects demanded resources.
He was happy to show us one. The complex housed an unthinkable menagerie of creatures created by mingled design and serendipity. If I tell you to imagine horns that are not horns and wings that operate according to unconventional mechanisms, you will not understand me, and in that I have succeeded. For I did not understand what I saw there.
"But why?" I asked. More detail seemed a superfluity.
"Across greater humanity, some seventy-six million sports teams are called the Wildcats. Another twelve million are Bears or Bruins, and barely fewer are the Cardinals. Each planet, each continent, each region must have its own species. I leave it to the denizens to name them, but I take it upon myself to make them."
I was impressed more than ever by the benevolent character of Herzerd Klobsarn.
Finis

Culture's Finite Advance

"Why doesn't anyone visit my museum ships?" The man paced around the room, a significant undertaking given its size.
"They're stupid," someone remarked from a couch.
"Why doesn't anyone visit my museum ships? They are an everlasting archive of human achievement. The entire internet year by year preserved in a series of annual superfreighters stationed beyond orbit so that they can also be reached without being touched by any contaminating updates. My private platform offers a free shuttle service, so it can't be the cost, which is what it usually comes down to. Why doesn't anyone visit my museum ships?"
The earlier speaker shrugged. His analysis had not changed, and his employer did not require flattery, obsequiousness, or false hopes.
Therefore it was in all sincerity that another in the room offered a suggestion. "Advertise more?"
"I put it all over every journal of note, every journal not of note, every public libraryr, university, college, community college . . . You did see to that, didn't you?" A thumb rose above the couch. "There, you see?"
"Maybe more, um, popularly oriented advertising? With logos and taglines and celebrities. 'In space, you finally can has cheezburger.' That sort of thing."
"We can try," the pacer allowed.
Within a month, half the population of Earth had migrated to space colonies to shorten the trip to the museum fleet while half the contemporary internet's pages became abandoned for lack of interest.
Finis

Approaching Science Fiction Scale

First question: Is a space knight a fighter pilot, a ship officer, a ship captain, a squadron captain, or a fleet captain? Mechs are of course fighters, but as for the equivalency for space dragons or other space monsters, that's the second question.

The Big Problem With Spaceships

Once we get to mining all them asteroids and such, we'll just fill space with a big complex we can traverse using scooters instead of resorting to big clumsy ships.

Addendum

That is, if the inheriting family members don't kill one another in the resulting dispute over the priceless legacy, which they most likely will. Whoops!

Future Implementations of Estate Taxes

When spaceships become hereditary, it won't be feasible to break them up and sell the parts. That means a new captain will owe service, possibly a galaxy-ranging quest, a year patroling the space marches, or public transport.

Likely Astronomical Phenomenon

The entire universe so far as we can observe it is probably contained within a big ol' spaceship, right? We wouldn't know if it weren't. I call this the "Big Haul" theory. As for who's driving, I bet he wears a cap to keep the super-sun out of his eyes, each of which is larger than a galaxy. What concerns us is where he's driving and what the recipient intends to do with us.

Declaration of Science Fiction Principles

1. "Wormhole" is a terrible term.
2. Spaceships! Woohoo!