More on the Demise of AM Radio in Cars

Article over at PopSci.  Key point: AM is the only over-the-horizon band in common use in the U.S.  That matters a lot to us out in fly-over country.  FM, along with various 5G and wifi options, are by their nature line-of-sight only.  Why is this so difficult for car makers to understand?  Have they all turned into flat Earthers?

Look, I'd love to see the noisy, archaic amplitude modulation component of the AM band broadcast standard ditched and replaced by a more modern modulation method – digital radio mondiale comes to mind.  But until that day, drivers who understand that the Earth is round need the long range capability AM radio currently delivers.

Columbus and NASA checked: horizons are easily explained by this spherical model.