A couple of my favorites…
Personal Buoyancy Balloons to enable us to walk on water
Personal Flying Machines
There are also moving pavements, moving houses (and entire blocks) on railway tracks, weather changing machines and roofed cities amongst others.
[Update: "Miracles You will see in the next 50 years" has visions of 2000 from the 50's whilst "Homes of the Future of the Past" is worth a look too. ]
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