We will always have STEM with us. Some things will drop out of the public eye and will go away, but there will always be science, engineering, and technology. And there will always, always be mathematics. Read more at: https://www.brainyquote.com/quotes/katherine_johnson_815494
Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.
If we knew what it was we were doing, it would not be called research, would it?
Somewhere, something incredible is waiting to be known