My working hypothesis is that someone or something came along and ate all the Garenhulders who did not huddle in their houses, creating a huge collective mythological
push to huddle in houses and avoid anything weird-looking.
They usually carefully constructed building that use sunlight to heat themselves up, and then concentrate that heat. Or utilise magma to heat things up. Or they possess some sort of plant which allows them do so.
All of which raise still further implications- the solar ovens suggest very specific statements about their architecture, the ready access to geothermal heat suggests pecific statements about the kind of place they live, and plants that spontaneously release enough heat to bake bread with have implications for a lot of things like "how do people stay warm in the absence of fire?"
But all of that is a side issue and not really the point. The real question is, at what point am I
looking for excuses to justify not changing a contradiction in my own backstory? At what point would it be less...
silly, for lack of a better term, less pointlessly obstinate, to simply back up and say "well, okay,
CLEARLY the guys who have been master bakers for three thousand years must have at least had the ability to use fire for all that time."
I mean, at some point you're just
adding epicycles to your backstory in an attempt to patch holes created by the previous epicycles, which were in turn patches for holes created by the epicycles before those. Faced with so many epicycles, the sensible course of action is to do as Alfonso X was said to have suggested, and just
back up and rethink things.
Honestly, this reminds me of interesting fact about the Ben 10 universe years and years ago. As it turns out, in that universe, Earths technological development is distinctly non-standard, where Universal Translators are usually invented concurrent with the steam engine, and radio is discovered and implemented after nuclear technology and anti-gravity has become widespread.
More generally, Tv Tropes calls this
Aliens Never Invented the Wheel and
Schizo Tech.
See, the trouble with things like that is that they are
really, really good at sounding superficially plausible to someone who does not know how the relevant technologies work. Things like "radio after nuclear power" just plain do not work, because of how physics itself works. Nobody who doesn't understand electromagnetism is going to do a good job designing and operating a nuclear reactor. They'll kill themselves unless all they do is ignorantly push the buttons in accordance with preprinted instructions from a third party, and if they
do push the buttons thus, they'll kill themselves as soon as anything about the nuclear reactor goes wrong and they don't understand why.
And this is problematic for extra reasons, compared to cases where the aliens have a weird social structure that defies our understanding of history (i.e., having cultures that discourage innovation persist and survive and even thrive without being outcompeted by cultures that
encourage innovation). Because weird social structure is pretty easily explained by "alien minds are alien."
But if the aliens nominally live in a universe
sort of like ours, then they live in a universe where radios and nuclear reactors work the same way ours do. And in which radios are much much easier to build at a much lower level of knowledge and sophistication than nuclear reactors. And it winds up taking some of the most twisted, tortured,
blatantly motivated reasoning imaginable to explain how you get nuclear reactors before anyone figures out radios.