I'm saying that we don't need "significant, ground breaking advancements". Obviously for something like a concert or dance club (where half the point is to lit

I'm saying that we don't need "significant, ground breaking advancements". Obviously for something like a concert or dance club (where half the point is to literally feel the music and the crowd) we aren't there yet. But for something like a stage play or a comedy show the significant barrier is a low-friction way to connect the audience response back to the performer(s). That comes down to implementation and infrastructure rather than the underlying technology. The technology is at a point where the next increment could be the one that makes a mass adoption feasible for something like "360 Facetime", "Street view but it's live/real-time", or "Portal but it's the entire room", It's not going to take a "significant ground breaking [technological] advancement".