In most modern SF we either see fancy hologram displays or something resembling a typical flat screen display that is seen in households today. I plan on breaking that trend in my SF novel by bringing back old school CRT monitors and 90's-esque tech to distinguish my science fiction setting from the many others out there. I want to give it a more 90's feel to the technology while still keeping it advanced and five-hundred years ahead of our time. The issue is that my novel is hard science fiction, I need a good reason to do this. It has to make sense because I want to create a future that is realistic and makes the reader believe that this could actually be our world in the next five centuries. In my novel, Humanity has colonized and settled on the fifteen closest solar systems to Sol. Typical colonies are domed or underground on barren exo-planets and moons with atmospheres toxic to humans or no atmosphere at all. Other colonies are city-sized orbital space stations that use centripetal force for artificial gravity. Ship and space station design is very utilitarian. Functionality should have higher priority over everything else because it takes a lot of energy and resources to constantly hold pressure and recirculate a breathable atmosphere inside of what is essentially a giant soda can with people living inside of it. So my original thought was "Perhaps CRT displays consume less power than there more advanced LCD and LED counterparts . . . right?" WRONG! Actually CRT stands for cathode ray tube. Cathode rays are electron beams, and they require a lot of energy to produce. More energy than what is needed to light up the LCD's or LED's in more modern displays. I could always use modern displays and give them a boxy utilitarian aesthetic, but it goes against the rule of functionality and utilitarianism. Flat displays are small, low-profile, and compact, they take up a lot less space than the cool boxy displays I want to use. I could definitely get away with this by putting these displays in household areas across human civilized space. Pop culture in my setting has taken a 90's turn. Ska music has regained popularity only after a couple centuries from now after all. But I don't want to use this tech in only a commercial and household setting. I want to use this on space ships and space stations and work environments, the setting that a majority of the main plot takes place on. I'm still brainstorming ideas. Who's to say that CRTs use up more energy than whatever tech exists 500 years from now? Actually . . . Moore's Law Damn it . . . Any input guys?