It's just an indicator that extensive improvement is possible. But as with adding more and more shader cores you can get your FPS gainz to the point of Ray-tracing appears around the corner and now you need to add different kind of cores.

Same process for research. You suppose to find some insights on how to do one thing or another, find the direction of search, eventually there would be hardware to fully explore that direction. Then you move on to a different direction. Rinse-repeat