Sci-fi technologies Displaces many Existing Technologies yet more traditional technologies is Viable

what's happens if many Existing technologies are replaced by Sci-fi technologies(all the modern weaponry other than Bombs, Rockets, Missiles, Drones, Grenades and Grenade Launchers, and Nukes are replaced by Weapons like Rayguns, Railguns, Coilguns/Gauss Guns, Laser weapons, and directed Energy Weapons as well Anti Gravity hover engine and Mechanized walkers for replaces Wheeled vehicles plus Powered Exoskeletons for replaces Bulletproof vest) likely because of the advent of the Free Energy technology and Room Temperature Superconductor Technology yet any form of more traditional technologies like Swords, Bows, Horses, and Spears are quite Viable?

[edit on 14-5-2010 by masonicon]

[edit on 15-5-2010 by masonicon]

[edit on 15-5-2010 by masonicon]

Originally posted by masonicon
yet any form of more traditional technologies like Swords, Bows, Horses, and Spears are quite Viable?

Well, there's always the option of climbing back to the trees.

One thing, though, about this subject is that, although there are so many people trying to find new energy sources for the benefit of the mankind (and to make themselves rich), there are things we could still learn from our past generations. One viable energy source, in particular, has been something that I have been interested in for a long time: wood gas. Here, in Finland, we used to run our trucks and buses on wood gas during the WWII, when we had the obvious reasons to give our armed troops a fighting chance against the soviets. Since then, it seems that the existence of this renewable energy source has been forgotten.