I'm not sure what you mean by "what happened to nanotechnology being the next big thing?" Are you asking why it hasn't become more prevalent, or why it isn't being talked about as much?
Nanotechnology is the study and application of extremely small things and can be used in a variety of ways. Some potential uses for nanotechnology include developing new materials, improving medical treatments, and creating more efficient energy production.
So why isn't nanotechnology more prevalent? I think there are a few reasons. First, nanotechnology is a relatively new field and there is still a lot of research that needs to be done in order to find more practical applications for it. Second, nanotechnology can be very expensive to work with and so it isn't always feasible for businesses to invest in it. Finally, there is also some public concern about the safety of nanotechnology and whether or not it could be used in harmful ways.
I think that nanotechnology has a lot of potential and I'm hopeful that we will see more practical applications for it in the future. Thanks for asking!
