One nitpick I ' m not spending $ 900 on a ship with no Lti . ~~ Keep in mind that you could get virtually any of the current LTI ships with the Jump being that price and upgrade to it . ~~ Honestly , though , even if it had LTI it ' s still a horrid deal . <| sep |> Rosana Wax <| sep |> Here ' s a comprehensive set of technical articles regarding telescope optics . optics . net <| sep |> Well seeing as time travel is mostly theoretical in terms of how it ' s used in movies , it ' s not exactly like there ' s any hard and fast rules anyone needs to stick to . When I say it ' s flawless , I say its flawless in terms of a movie going experience . Name me one thing it gets wrong in pacing , plot , characterization , climax , structure , setuppayoff , etc . It ' s silly to argue the technical aspects of time travel given its theoretical nature . Any general storytelling or moviegoing experience , BttF nails about as perfectly . Also , how exactly does all time travel movies have that same problem . except 12 Monkeys ? What makes that any different in terms of how it got time travel right and all the others get wrong ?