Creationism and the Abduction theory
The posts will come fast and furious in the next two days.
First I want to cover a little more about why this ending is of so much concern to many viewers. While many will accept that it is unscientific, and just say that they never cared that much about such things, the particular errors and issues of the final plot are rather special. What we saw was not merely spacecraft making sound in space or FTL drives or some other random scientific error.
The error in BSG centers around the most pernicious anti-scientific idea of our day: Creationism/Intelligent Design. In particular, it tells the "Ark" story, though it sets it 150,000 years ago rather than 4,000. And, because Moore knows the Ark story is totally bogus, he tries to fix it, by having the alien colonists able to breed with us humans, and thus having the final result be a merger of the two streams of humanity. That's better than the pure Ark story, and perhaps enough better that I see some viewers are satisfied with it, but with deeper examination, it is just as bad an idea, and perhaps in its way more pernicious because it is easier for people to accept the flaws.
SF writers have been writing the Ark story since the dawn of SF. Indeed, the alien Adam and Eve plot is such a cliche from the 40s that you would have a hard time selling it to an SF magazine today. Not simply because it's nonsense, but because it became overused back in the day when it wasn't as obvious to people how nonsensical it was.
The Ark story is not just any bad science. It's the worst bad science there is. Because there are dedicated forces who want so much for people to accept the Ark story as possible. Normally busy scientists would not even bother to debunk a story like that, but they spend a lot of time debunking this one because of the dedicated religious forces who seek to push it into schools and other places religion does not belong. And debunk it they have, and very solidly. The depth of the debunking is immense, and can't be covered in this blog. I recommend the talk.origins archive with their giant FAQ for answers to many of the questions about this.
BSG plays a number of tricks to make the Ark story more palatable. It puts it back further in time, prior to the migrations of humanity out of Africa. (Oddly, it also has Adama spread the people around the continents, which simply means all the ones who did not stay in Africa died out without a trace or any descendents.) It makes it a merger rather than a pure origin to account for the long fossil and geological record. It has the aliens destroy all their technology and cast it into the sun to explain why there is no trace of it.
It does all those things, but in the end, the explanation remains religious. As the story is shown, you still need to invoke a variety of divine miracles to make it happen, and the show does indeed do this. The humans, on this planet, are the same species as aliens from another galaxy, due to the plan of God. They have cats and dogs and the rest, even though 150,000 years ago, humans have yet to domesticate any animals. Indeed, god has to have designed the colonials from the start to be the same species as the natives of Earth, it all has to have been set up many thousands of years ago. This is "intelligent design," the form of creationism that gets dressed like science to help make it more palatable. It is also a pernicious idea.
In one fell swoop, BSG changes from science fiction -- hard, soft or otherwise -- to religious fiction, or religious SF if you wish. Its story, as shown, is explained on screen as being divine intervention. Now, thanks to BSG, there will be discussion of the ending. But it will involve the defenders of science having to explain again why the Ark story is silly and ignores what we know of biology. I am shocked that Kevin Grazier, who advocates science teaching for children, including biology, was willing to be a part of this ending.
Sadly this ending goes beyond being bad SF.
How to make it work.
Now there is one plot which BSG did not explore which would have made a lot of sense if they wanted to tell this story. It's been noted on this blog a few times, but discounted because we believed BSG had a "no aliens" rule. This is what I called the "Alien Abduction plot."
In this plot, aliens -- in this case the God, who does not have to be a supernatural god -- captured humans and various plants and animals from real Earth many thousands of years ago. The god took them to Kobol, and possibly with other gods (the Lords of Kobol) created a culture and raised them there. From this flows our story.
This plot has been used many times. Recently in Ken Macleod's "Cosmonaut Keep" series the characters find a human culture way out in the stars, populated by people taken by "gods" (highly advanced beings) a long time ago. The same idea appears in Rob Sawyer's dinosaur series, and many other books.
Do this, and it suddenly explains why the colonials are the same species as the people on Earth, but more advanced. It does not explain their cats and dogs, or their Earth idioms, but those can be marked down to drama. (They would have to have independently domesticated cats and dogs and other animals, as this had not happened on Earth. Same for the plants. The gods could also have done this for them.)
This plot works well enough that it's surprising no hint of it was left in the show. I do not believe it was the intention of the writers, though I would love to see post-show interviews declaring that it was.
And even this plot has a hard time explaining what happened to their culture, the metal in their teeth and many other items. For try as they might they could not abandon all their technology. Even things that seem very basic to the Colonials, like better spears, writing, animal and plant domestication, knives, sailboats, complex language and so many other things are still aeons ahead of the humans. They plan to breed with the humans, and will be taking them into their schools and educating them. There was a sudden acceleration of culture 50,000 years ago, but not 150,000. And then there's the artificial DNA in Hera and any other Cylon descendents. (And no, Hera isn't the only person we are supposed to be descended from, she is just the source of the maternal lines.) But maybe you can shoehorn it in, which makes it surprising it wasn't used.
The idea, taken from the old series, that the Greeks would have taken some of their culture from the aliens also is hard to make work. Why do their cultural ideas and now hopefully debunked (to them) polytheist religion show up nowhere else but Greece and eventually Rome? How do they get there, and only there, over 140,000 years of no writing, hunter-gatherer life? I am not a student of classical cultures, but I believe we also have lots of evidence of the origin and evolution of our modern Greek myths. They did not spring, pardon the phrase, fully formed from the head of Zeus. Rather they are based on older and simpler stories we have also traced. But the alien religion is based on our modern concepts of ancient Greek religion.
Even in 5,000 to 10,000 years, there would be a moderate amount of genetic drift in the Kobol environment, including the artificial genetic manipulation involved with Cylons. Since we learn that Africa has more game than the 12 colonies, it's clear the colonials did not have all of Earth's animals. It is contact with animals that generates most of our diseases. When different groups of humans get separated for many thousands of years, with different animals, the result is major plagues when they meet. Without divine intervention, the colonials are about to be reduced to a small fraction of their population. Especially after tossing their hospitals into the sun. (Why don't we see any sick people saying, "Excuse me, do I get a vote on this whole abandon technology idea?)
The other plot which could have explained this I called the "Atlantis" plot. In this plot there is an advanced civilization long ago which reaches the stars but falls and disappears without a trace. It is the civilization that colonizes Kobol and becomes as gods. This requires no aliens. This is not their chosen plot, since it's even harder to explain how this civilization left no trace, since it would not have gone to the technology destroying extremes the Colonists are shown to do.
Coming up: Why religious SF is a bad idea, even if you believe in the religion. (Hint: while the author is god, you don't want them to really use that power.)