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You never know when such a thing may just pop up for no good reason. Though the odds are astronomically low, science fiction tends to end up science fact after a good amount of tweaking and revising.
Yep, we cannot laugh at science fiction because some of them could become a reality although it takes time to develop new high tech....and usually the army starts it first.......like lasers, computers, jetpacks and so on, although some of them were useless and scraped from the drawing board...
We can make a robot fly by attaching some similar style jet engine equivalent to Harrier jets.....
(Place some below it's feet, some attached to it's back, and more around it's body.)
But it was quite expensive to do it based on the increasing oil price and global warming.....
(1 Robot=10 Jets.....)
Unless the white coats can develop a new, eco-friendly, less dirty fuel....
They also can now warp things from one place to another, but it was just protons.... ;-) Maybe it will shred larger organisms, like us?