Have you ever considered the infrastructure that exists to make it possible to tune to 7.090 MHz, call CQ and make contact with anyone on the planet?

In a world where we as radio amateurs share spectrum with radio and television broadcasters, mobile phones, wireless networks, satellites, GPS, drones, wireless headphones, radar, boating, aviation, citizen band, garage door openers, fitness trackers and any other wireless gadget imaginable, not to mention radio astronomy, microwave ovens, meteorological aids, inter and intra car communication, autonomous cars, trains and more.