What in your mind represents real technological advancement.

DAC's have really come a long ways and really are moving us forward in a productive way that allows more people to enjoy high quality and even extremely high quality music.....

One speaker per instrument, that can dynamically rearrange themselves to mimic what is playing to match the soundstage of the original recording. Now that would be something!

Likely would need a special room/wall with robotics that can move everything around on the fly. Probably not cheap...

To me the continual refinement of a good design over time, instead of pursuing the latest, greatest notion simply for the pursuit of being first, has the best results. The latter is good for marketing. The former, done properly, results in a more refined solution.

This is not just applicable to audio. I own multiple products from disparate industries, each of which has honed their offerings literally over many iterations and years. Each of them are leaders in their fields.

+1 for Wilson Benesch