They are real but rare. Situations that change society as a whole. For example creation of printing press which spread both religion and literacy. Or creation of the combustion engine which lead to cars and trains resulting in the society spawl we now live in. Or the discovery of germ theory which revolutionized medicine. Or the the west India shipping company started selling rights to some of the profits of a shop if people gave them money early so they could afford the ship and the trip, effectively creating stock markets(especially the futures market). Or creation of the transistor instead of vacuum tubes.
People claim things are paradigm shifts so others will give them money but most typically aren't. Like 3d tvs were supposed to be a paradigm shift about 15 years ago, now when did you last even see a 3d movie or see a 3d TV for sale in a store? Vr was supposed to be a paradigm shift for games but it's still incredibly niche due to price, downsides of current tech and lack of software (software isn't developed because there's not a consumer base and there's not a consumer base because there's no software)
Fixed, I should of known that as I mostly play on lichess but I just have a bookmark