I imagine that the palsy is the result of not tuning the node to match the component perfectly. But it may also be subject to a theoretical limitation due to wh

I imagine that the palsy is the result of not tuning the node to match the component perfectly. But it may also be subject to a theoretical limitation due to what frequencies can be interfered with before the air stops behaving properly; I assume there's plenty of control left for tuning, but it may just not be possible. I am definitely out of my technical depth on that; may be fun to look up papers on the topic, assuming few with paywalls. And yes, it is likely wildly inefficient. I could still see it being used as a touchless guidance/placement device, but it would likely need a hellaciously fast camera system to work in tandem as components stream between speaker sets. (I'm referencing something like the system that rejects bad potato chips, but with the ability to route/align components.) Is there an application that needs touch-free interaction? I assume so, but honestly can't think of one, let alone needing this level of control. It definitely feels like a technology in search of an application (like GorillaGlass).