Now that you have said that, I think we can agree on enhancing the Modern Age (especially) as a goal! Space cities are kind of ridiculous, I think, as are underwater colonies as somebody mentioned earlier--sure, we have some underwater bases, subs, etc., but not hundreds of thousands of people beneath the waves.
I agree those Space cities are a no no, but have em under sea? sure! One wonder that lets you do the trick and not repeat it. Mybe a great engineer colonizes the first and only underwater research colony which bangs out twice the amount of beakers every turn and grows at a rate determined by the amount of a few specific great people only allowed to colinize it. Drop em of in a sub and you get specific bonuses related to that great persons traits-(explorer scientist engineer)mybe expanding the size of the colony in wide spread areas?
I would like to see an automobiles technology that increases the movement along roads (again), and a similar tech for rails. Also, modern armor and mech infantry should move at least 3 squares, if not 4. Upping the movement of some Industrial Age units would be nice as well.
I like the idea of a monorail but the whole focus on movement points is kinda dull man. Focus should be on advanment of the economy and production capacity to gear up towards greater costing weapons. If you are balls out powerful you deserve to see where it can take you. AGain meeting the China of the world near end game (you being USA) is when you will face off with compition with similarly powerful weapons. Most of the other CIvs will haven fallen by the wayside like a real life future scenario
And I never said the game should flat end at the Industrial or Modern era...but I disagree with things like walking battle-mechs and massive laser-shooting armies and other "scifi" style technologies.
(to lazy repeat)You see the game as a world history replay, others want more freedom to chart there own path in the context of what can occure. (look to the way of the future )
For example looking from one angle, had the historical Civ you are curtailing made the power moves you as leader might acheive they could have powered future innovations to the level of what you call Sci-Fi, or Fantasy. It sounds just like back when others said the same about airplanes, trains and space shuttles, subs etc
Keep it real--railguns, fusion, trimarans, maybe more kinds of aircraft (like dive bombers that can be stationed on warships, or transport helicopters that can drop off infantry), cruise missiles, tactical nukes that can be loaded onto nuclear submarines, etc.
You don't no whats "real"(real-ly possible) to begin with. How are you to judge whats "keeping it real" If a society has enough brains, capital resources or time Anything is possible. We talk about adding more time but not all players will need it. In a game of Civ you control how fast you grow and more important, your set the pace for the tech flow . Your not curtailing to any specific order of real historic events that may have crippled development and reaserch capital (pace) many times.
These members ideas are not talking fantasy as you referred, but a change from a narrow scope to a broader range of reality.
Regarding the Nuclear subs along with the tactical nukes to pimp em out with, I agree its a great idea. Like the patriot missle CIv3 proved these worked beatifully in adding varity I was expecting them it be in CIv4 Warlords but they were left out to my dismay.
There are plenty of currently-existing technologies that can be fit into the Modern Age; we don't need to add some ill-contrived future era to the game as well when we are ignoring so much that can be implemented and still keep a historic/contemporary flavor.
Why call radical improvments Fake? Its perfactly natural for are technolgy to improve drastically over time. Where have you been bro?. I heard you agree with Kushluk. He suggested around a century extension, isn't it safe to say a few of what you call 'ill contirved' inventions might come along in that time?(flash back to 1900)