1980s people were asking this question. The band Daniel Amos wrote a song about it:
Video by lonzo625: “A video I put together in the 1980’s for the “Rocket Packs” song by Daniel Amos. It’s a reminder of the visions of the future seen in sci-fi movies and books in the 20th century. FYI…that’s Lenord [sic] Nimoy (Mr. Spock) at 3:30 in an actual Rocket Man serial appearance.”
From The Golden Institute project by Sascha Pohflepp
A favourite device of ours in ‘walking the landscape of possible futures’ is to imagine a counterfactual – a ‘what if’ version of history where changing one or two factors results in a recognisable but very different present or future.
“…thinking through these kind of ‘counterfactual’ scenarios can throw up interesting possibilities. When we’re ready to think about throwing away the things that we hold most precious, we can see new ways to hold on to them.”