This is really cool stuff. The "eavesdrop-proof" modulation scheme is particularly interesting - I'm curious as to why they didn't also frame that bit as also r

This is really cool stuff. The "eavesdrop-proof" modulation scheme is particularly interesting - I'm curious as to why they didn't also frame that bit as also reducing interference, as it seems like it would allow a base station to steer more beams without "stepping on its own feet".