There are some features that are common to narratives and stories that have spread fastest:
they tend to be catchy, very simplified models of reality
one or more influencers were involved, helping their fast spread
They are part of a narrative cluster, which makes them more plausible, e.g. the rise of AI, blockchain innovation, etc.
they are often newer and more resistant variables of old narratives e.g. the speculative benefits of harnessing a scarcity e.g. land and buildings
(ideas from book “narrative economics” by Robert Shiller)