Directional antennas make wireless spectrum a lot closer to infinite. For example, I believe that SpaceX has committed that their ground stations will never tra

Directional antennas make wireless spectrum a lot closer to infinite. For example, I believe that SpaceX has committed that their ground stations will never transmit straight towards geostationary orbit, meaning that Starlink can use the same frequency bands as geostationary satellite services. With proper coordination, increasingly narrow beams can transmit increasingly more data over the same spectrum.