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Jules Verne wrote about electrical submarines (Nautilus in 20,000 leagues under the sea), tasers, newscasts and videoconferencing, all became reality

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The Nautilus is powered "by the same power as the sun", so you could argue that it is a nuclear submarine.

A nuclear fusion submarine, no less...so still not there yet!

apart from, you know, being 20,000 leagues under the sea, which is 1.1112e+8 metres accoridng to google. and submarines so deep in the ocean that they are actually deep in the space on the other side... or maybe it's just ISS?

I'll just quote Wikipedia:

"The title refers to the distance traveled while under the sea and not to a depth, as 20,000 leagues is over six times the diameter, and nearly twice the circumference of the Earth.[2] The greatest depth mentioned in the book is four leagues. The book uses metric leagues, which are four kilometres each"

(https://en.wikipedia.org/wiki/Twenty_Thousand_Leagues_Under_...)

Of course, if we're being pedantic about details, that still puts the depth the Nautilus reached at over a kilometre into the earth's crust below even the deepest part of the known ocean...

Let's be kind to Verne. He did not know the depth of the Marianas trench.

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