I think that's just confirmation bias (might be another fallacy) because when you have enough source material, it's trivially easy to find those types of refere

I think that's just confirmation bias (might be another fallacy) because when you have enough source material, it's trivially easy to find those types of references predicting the future or describing something we only prove later. You also end up ignoring all the times the source material was wrong and focusing on the instances it was seemingly correct. See also, Nostradamus and the Bible for a similar type of phenomena.