First I think a good scifi story should revolve around the lives of colonists, their ambitions, their lusts. The culture clashes, the day to day discriminations the need for trade etc not some big battleship with lots of torpedoes. One of my favorite TNG Trek episodes was Picard meeting this guy Darmok. There were no space battles, no big battleships just Picard and this guy Darmok going through a culture clash, two guys struggling to communicate in order to fight effectively and trying to understand each other as best they can.....the episode is absolutely brilliant! No Navy ! No Space Battles! but a wonderful episode. If you watched Andromeda, or TNG or even Voyager you will see a lot of episodes degenerated into planet of the day, they would spend a few mins in "deep space" and then all of a sudden visit a new planet. No need for supplies, no stuck out at sea for weeks, no docking to get the crew new food, no fresh laundry, no naval blockades and sieges....ok I know TNG had that "replicator" excuse where they could live forever without supplies but Voyager didn't even pretend to be a Naval spaceship lost at sea. How many times did Janeway run out of coffee!? none I can think of! Life looked pretty liberal and sophisticated in these shows yet everyone religiously followed the Navy structure in these series, greeting and saluting their commanders and petty officers following a bunch of antiquated traditions. Also why would you need the Navy with wormholes, warp speed and slip streams since the vessels more or less behave like taxis or aircraft often going from one planet to another in a matter of hours.
This thread makes my brain explode!
This will make it hurt even more >>> some people might insist if you want exciting scifi you need battles and explosions but why would they battle using an old structure? Part of the reason the Marine Corps were formed was to give a new structure which combined task forces for the new military weapons of the revolutionary war. The Navy just seems so obsolete to me, are people suggesting that in the 23rd century people would still big fighting using the old Navy system, even in the Klingon and Cylon Empires they still can only fathom how to fight in one way. That's to fight with big ugly looking ships? "Full speed ahead, photon torpedoes....Arrrggh where's me robotic cylon parrot !" Why wouldn't they form a new military structure. For those of you who say the only way to manage lots of troops is by the Navy structure I say look at Normandy, head of the attack were Bradley and Montgomery (army guys) and Commanders Dwight D. Eisenhower and Tedder. I hate to say it but a lot of scifi to me has degenerated into fan wankery, for boys who collect toy ships, or people who reminisce about days at sea or for fan wankery people who play too many video games fighting one bigass 3d battleship against another online ship. Stargate and Firefly might have done some of these planet of the week episodes but I applaud them for try to deal with real people and at least getting away from the Navy structure for more than an episode or two.