it's extensively discussed in Enoch, and in genesis it's practically the main reason given for why the world needed to be washed away... though considering the science of pole shifts and the geomagnetic disaster cycle that was probably just what was interpreted from it in the time in between, since as far as we know there isn't actually texts older than this

except it does say in enoch that reading and writing were not widely known among his people, and he learned it from the angels, and spent quite some time teaching this knowledge not just to his family, at one point, yes, if you read some other genesis apocrypha, like Jasher, especially (which also strongly hints at the idea that adam and eve were in eden to learn to farm, it even specifies they had a 7 year course), which all lines up with the idea that the whole thing is something of a cargo cult, but at the same time... if there was a civilization that advanced that much past their peers it would be like the opposite of the famous cargo cults of WW2, as in, imagine if this modern tech society was keeping to itself instead of going around conquering and shit... then you sorta see, it was another sign that they were more advanced because they held noninterference very highly as a principle and as such while they visited other lands they mostly were just showing up to give warnings or help out in some situation they heard about