The way I recollect it, this is so far very different from Segway. In the runup to the Segway release/announcement, all the hype was coming from the Segway people and the press was repeating it because they had nothing else to report besides potted biographies of Dean Kamen and his previous inventions. I don't remember tech journalists going in, getting to use the Segway for hours, and coming out and telling the world that it was going to change cities forever (even if they aren't allowed to explain exactly what 'Ginger' was). With Magic Leap, on the other hand, we have many people going in, using it live, and coming out and saying it's going to change everything, including people who have been watching tech hype bubbles form & pop since before you or I were born, like Kevin Kelly. I think we can be pretty confident that there is some extremely impressive technology in there and that the descriptions are not totally bogus, even if we remain uncertain how successful it'll be (eg VR headsets are technically impressive and do deliver presence and deliver on many promises, but have not yet set the world on fire).