TIL Nikola Tesla predicted the rise of the modern smartphone over a century ago. He described a world where people would communicate wirelessly across the globe with devices small enough to carry in their pockets, envisioning what he called “a world wireless system.”

https://en.wikipedia.org/wiki/World_Wireless_System
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https://www.reddit.com/r/todayilearned/comments/1ghlqd4/til_nikola_tesla_predicted_the_rise_of_the_modern/