What prevents light sabers from shooting off into the universe?

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Mix6APlix

The more you cry, the less I care.
Oct 20, 2015
12,918
13,408
They are clearly lasers. What sorcery binds the laser to saber shape, instead of them light beaming into Bolivia?
 

Super Dave

The party’s over
Dec 28, 2015
11,290
15,445
But seriously the saber has an emitter that controls the length of the blade.
Some have a length adjuster but most are at a predetermined height when built by the wielder.
 

Ghost Bro

Wololo ~Leave no turn unstoned
Nov 13, 2015
8,511
10,799
Lightsabers are a health and safety nightmare.

Lasers are invisible in regular atmospheric conditions, have no mass (to be able to deflect even other lightsabers), can't really stop unless you put a mirror in the other end to reflect it back. If they ever come about, I'll personally kill Darth Vader with the backside of a cd.

I think they can get around that by saying "its plasma" or smth like that...but then the lack of a cooling mechanism would be very problematic indeed. It would probably need plugging into the mains too..SO yeah, the force!