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Originally Posted by Lisnaholic
^ Yes, a lot of those old predictions missed the mark by quite a lot, and who could possibly have imagined that technological marvel, the selfie stick! 
Mind you, H.G.Wells scored a real hit in 1899, when he wrote about two men who " walked straight to the dead end of the apartment... and then came a strange thing: a long strip of this apparently solid wall rolled up with a snap, hung over the two retreating men and fell again." The first ever automatic door! This was such a futuristic must-have that they were later installed throughout the starship Enterprise, and now people walk through them unthinkingly at their local supermarket. |
I wouldn't wonder if escalators have been foreseen in sci-fi as well, but I wouldn't know where. Maybe even the concept of supermarkets itself. It seems weird for someone born in 1981 (me) to think of super markets as a relatively recent invention, but that's how it goes with any invention. I'm sure young people these days can't at all imagine a world without mobile phones or Twitter.