After watching the latest trailer, there are three main points I feel needs to be addressed:

  • How is the crossguard constructed? Is it similar to a double-bladed saber's construction of using multiple crystals to achieve the emittance of multiple blades?
  • Why does Kylo Ren's saber flicker? Seeing as the blue saber Finn was wielding in the trailer is similar to a good old Jedi lightsaber, we can conclude this isn't a new CGI style, and thus likely have an in-universe explanation. Are there functional differences to it - for example different combat characteristics, or perhaps it is unable to achieve zero energy leak?
  • Overall, is it a technological advancement, a "primitive homemade device" or simply a variant on a roughly similar level of technology?

closed as primarily opinion-based by user1027 Oct 23 '15 at 16:33

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Given that the rest of us also only have the trailers to go off of, I doubt you'd get any more than guessing games. Isn't your question asking people to speculate on unreleased material? – Wolfie Inu Oct 23 '15 at 6:36
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  • I was wondering if there was any talk of it in, say, novels and such – thegreatjedi Oct 23 '15 at 6:40
  • Similar question: scifi.stackexchange.com/questions/73788/… As to Finn's Lightsaber, I'm pretty sure I read somewhere that it is Luke's, which is probably why it looks like a "good old Jedi lightsaber". – Catija Oct 23 '15 at 6:40
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    "three main points" - pun intended. – Coomie Oct 23 '15 at 7:17

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