Master Chief is the only realistic choice. Imagine, if visible light could hurt people! Lol! And magic? Oh god don't get me started.
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I thiught lightsabers were plasma...
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They are.
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Plasma wouldn't be able to cut you in half.
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Yes it would. We already cut though steel with it. It's a pretty common thing.
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Titanium? And that quickly? No. Definitely not.
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Of course not that fast. We can't build a light saber right now. But plasma definitely can cut through metal, and can do so fairly fast. Plasma cutters? https://en.m.wikipedia.org/wiki/Plasma_cutting
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Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. Hot plasma How can plasma be heated by being shot out of a giant tube? And how could they fuel it for so long?
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Why are you asking me to explain science fiction? There's a reason we don't have them yet. My entire point extended only as far as "Plasma can be used".
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It says a long time ago in the intro, so...
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It also follows that with a kilometer long space ship firing light based weaponry at another ship over a desert world with two stars.
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Exactly. Completely unrealistic.
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Are you so incredibly stupid to keep misunderstanding the part of "for our time period"? No, we can't build them now, or else we'd be making them. But they are very plausible for future technology.
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They are condensed, focused light which is controlled into a beam by the base of the saber.