H. G. Wells was going on and on about there never being any rest for mankind. Advances will continue and we will be there to meet them.

Same with physics. We may not all "get it," but we will all use it. Physics cannot become too complicated for the human mind, for that very idea limits the capacity of humanity and the advance of evolution.

There may become an issue when we believe we're too clever for the universe and start designing a new path for evolution which I believe would likely point us toward a dead-end and we're better than that.

Fundamentally, as Sheldon Cooper stated in on episode of "The Big Bang Theory," there has been nothing new in physics since Copernicus, and even that was a simple matter of moving a selected number of orbits.