• shalafi@lemmy.world
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    1 day ago

    Came to say cell phone. Even as recently as the early 90s, no one on Earth had tech that was close. It would be plenty understandable by extrapolating current tech, but no one would believe it was a contemporary device.

    • Lovable Sidekick@lemmy.world
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      21 hours ago

      Yep exactly. Many people in 1975 might have thought a smartphone was some kind of trick, but the professor I’m thinking of was very familiar with digital electronics and would know it was absolutely impossible to build such a thing at that time. I would really love to tell him all about the Internet etc. And of course when to sell his house and buy Microsoft stock lol.