I've just finished The Sirens of Titan from 1959 (after seeing it recommended here, actually) and something struck me compared to more recent books. A lot of the more technical stuff is kind of hand-waved away. It's not a criticism, just something that stuck out as I was reading. Is this a trend? Do readers demand more details these days? I've read a bunch of sci fi from the 60s until the present day, but I've only really gotten back into it more recently with Sirens.

Perhaps I've read too much Neal Stephenson, who has likely never hand-waved anything away! The Martian also springs to mind, but that's very deliberately focused on the details and keeping it realistic, IIRC.

The Mandalorian is set after the fall of the Empire and before the emergence of the First Order. We follow the travails of a lone gunfighter in the outer reaches of the galaxy far from the authority of the New Republic.

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• S01E01+2
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This is what you get when you search VUDU for free science fiction movies. The plot is banal enough. A spacecraft is discovered in Colorado that is 14,000 years old. A linguist and her lover are hired to read an inscription and then summarily paid and told to go home by the mysterious and unlikeable head of the project, Richard Kontral.

This description in no way does justice to how bad the script is. My first theory was that a rich father gave his fourteen year old son a chance to create a movie for his birthday present. But it's really just a low budget sequel to an obscure cult film called Moontrap.

The lead character, Scout, is played by Sarah Butler who evidently rose to wordly fame in I Spit on Your Grave. Every line that Scout says to the villain includes adolescent sexual insults. The villain is I believe a washed up actor from an old sitcom called The Nanny. This guy is really hard to watch, the acting is as bad as the script.

There's a scene of robots fighting that looks like it was choreographed with Rockem Sockem Robots, a toy from my childhood. If you're a collector of bad movies, this is a true gem.

It was tough to watch, but our free streaming was slim pickings that night. I wanted to watch Day of the Triffids a classic bad movie from the '60's , but got outvoted. At least that movie was based on an interesting SF novel by John Wyndham. Maybe tomorrow night.

Here in 2019 the overwhelming majority of all currency is virtual and commerce on any appreciable scale occurs electronically. But consider a sci-fi/space opera setting where reasonably fast FTL is commonplace, but FTL communications are not possible. Obviously one could still "communicate" at FTL with a courier, but you would still be limited to the speed of the courier ship. You certainly wouldn't have instantaneous communication between star systems, meaning there can be no interstellar electronic banking: transactions would take years to complete.

The Traveller tabletop RPG uses exactly this setup: FTL travel is common, FTL communication does not exist. In Traveller you have the Third Imperium minting currency that is accepted essentially everywhere, the currency is Imperial Credits and they're printed on polymer bills. The result is an effectively cash-only economy.

But what if your setting has no centralized government? Do people revert to using gold? Are there fleets of merchant ships schlepping precious metals around the cosmos, as if the American Old West has been transplanted into space? Would they come up with a cryptographic solution? Could something like a blockchain work without instantaneous communication cross the entire network that accepts the cryptocurrency?

What if quantum computing is widespread in your setting, rendering most forms of encryption obsolete? That would seem to eliminate the blockchain based option, FTL comms or not, and once again send us back to needing a fiat currency, or a gold standard.