If the shield were to be made concave and faced towards its origin, it could end up focusing it back to where it came from as well.

Isn’t there a problem with subsonic audio in that it’s really hard to determine the direction it’s coming from? Although with a crowd big enough I suppose you could probably get a visual indicator of where the source is based off of people’s reaction to it.

Edit: After watching the video I don’t really think a person holding a shield would be able to reflect something that was able to clear a space as wide as a street. I’d also wager that the people welding such a weapon likely have the appropriate hearing protection to keep the system from effecting their selves.

Pretty easy to disable the location app permission or set it to ask every time. Firefox hasn’t asked me to enable it since turning it off.

I think what they are maybe trying to convey is that when you’re lost in the throes of schizophrenia you aren’t exactly operating on valid logic so it’s hard to even realize that you are doing the things that you are doing. If that makes any sense.