So November 2019 is almost here. The time depicted in the original blade runner movie. No doubt Elon chose this time to reveal his cybertruck.
But expanding the theme beyond, we are nowhere near having flying cars (aka spinners), the world is still not very split, and feels more normal than the film depicted.
Good or bad, it tells us that Hollywood’s imagination of a future is more extreme / dramatic than how it plays out. Elon is trying to close that gap.
OT, but before market...
Do Androids Dream of Electric Sheep by Phillip K. Dick was about what it means to be human and what is reality. I think a critical point in the book is when Decker is out in the middle of nowhere and flips a tortoise over and discovers that it has a serial number. Although one of his better books I still prefer
The Three Stigmata of Palmer Eldritch.
Blade Runner is a movie adaptation of
Do Androids Dream of Electric Sheep and although it changes the
story quite a bit the underlying theme concerning what it means to be human is still present. Because it was a movie there had to be explicit visuals. This was done in support of the story, not as a prediction, and a dystopian theme was chosen. So the fact that it was "more extreme / dramatic" is rather expected. The movie is a drama and this goes with the territory.
Take
Firefly as an example: it is patently a space western with no concern for cosmology. Planetary bodies are tightly packed and it isn't even clear what sort of "system" is in place -- that is, it clearly does not take place in anything recognizable as a solar system. It is more of a random dropping of "planets." This is because the "space" aspect is window dressing for it being a "future" setting. The stories told concern the characters and their relationships, also establishing a kind of libertarian mythology ("you can't take the sky from me"). While there is some interaction with the world at large it is kept vaguely menacing ("two by two/hands of blue" and the reavers).
The book
1984 was not written as a prediction of the future, but as a criticism of the present (1948). Here the 'future' setting was used as an excuse for a heavy-handed portrayal of what George Orwell saw in his present.
In all of these cases the future setting is to distance the story from the present for dramatic effect. They can either pick a specific year (
2001: A Space Odyssey) or just make a vague statement (
Star Wars). Even hard science fiction such as
Dragon's Egg is generally about expounding on some idea rather than a prediction (though Robert L. Forward did write
Future Magic, an attempt to layout possible future technologies grounded in at least theoretical science).
In short: looking to scifi dramas to predict the future is akin to reading the Brothers Grimm for history.