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There has been wide interest and even enthusiasm towards 3D and mid-air displays for well over a century. Recently many kinds of "holographic" displays have been seen in sci-fi movies like Star WarsTM etc. Media or 3D display manufacturers nowadays often claim that a specific novel display is like the ones seen in Star Wars. We survey and assess if how and to what extent the Star Wars mid-air displays are realizable with contemporary display technology, what are the strengths and weaknesses of various approaches, and when we can expect the mid-air displays to take over the display market.