Also some things take a long time to develop. One of my great heroes is
https://en.wikipedia.org/wiki/Konstantin_Tsiolkovsky
who knew that man would set foot on the moon based on some assumptions about conservation of momentum and the kinetic theory of gases.
Myself I was involved in several projects in the 2010s, both working for other people and myself, that were going in the direction of today's chatbots. The technology was not ready!
I thought this talk was up to the minute when I gave it
https://www.slideshare.net/slideshow/chatbots-in-2017-ithaca...
and three years later felt time had passed it by, and today it seems prophetic.