I'm very aware of MIMO and the other physical layer technologies. But the original topic was about how wireless could somehow progress faster in these metrics t

I'm very aware of MIMO and the other physical layer technologies. But the original topic was about how wireless could somehow progress faster in these metrics than physical mediums. Mediums like fiber have progress much more in the last decade by adding more wavelengths and different modulation technologies compared to space technologies. SpaceX is only using MIMO in the sense that they have a phased array antenna, but that's not the same as your typical wireless router at home with multiple antennas. The other issue is space is severely power limited, so they are not going to get really high modulation schemes that fiber or cable have enjoyed (256+QAM) for many years.