How isnt it ? You have microwave being directed through an electronic wave guide in sealed chamber with no external thrust . They are claiming to have an action without an equal and opposite reaction . So you have to ask what it is pushing against . What happens to Newton ' s 3 rd law of motion ? What is it pushing against ? <| sep |> I have no idea how complicated it is to get access to a server which is probably inside some datacenter . I do have a VPS server myself and although i trust my hoster i am quite confident that a nation state agency could easily have access to it without me noticing it . And replicating a full functional site is easy ? Why doesn ' t anyone just copy Facebook , google , etc ? <| sep |> Yeah . I would write a counter argument to his but I might do it later .