You are talking about s-curves, if I understand it correctly.
Few notes: first, exponential growth does not necessary mean fast growth, some of the technologies can still be in early phase or depend on some future advances (compare time for tv to capture the world vs smartphones)
Second, the decline of exponential growth of a technology does not mean it can't be replaced with a nother technology with better prospects (i.e gas cars vs electric cars, etc).
I would argue if that you zoom out for a bigger picture, technology as a whole does show traces of exponential growth.
Few notes: first, exponential growth does not necessary mean fast growth, some of the technologies can still be in early phase or depend on some future advances (compare time for tv to capture the world vs smartphones)
Second, the decline of exponential growth of a technology does not mean it can't be replaced with a nother technology with better prospects (i.e gas cars vs electric cars, etc).
I would argue if that you zoom out for a bigger picture, technology as a whole does show traces of exponential growth.