Ah yes, just pounding that Kool-aid… if by kool-aid you mean observations of how technology and the cellular industry work, and observations of trends by carriers both domestic and foreign by someone who worked in said industry for the past 15 years… sure!
SIM cards are identifiers at this point, nothing more, nothing less. While the worldwide standard at this point on GSM networks is to use the SIM for that identifier, let’s not forget that two of the prior largest US based carriers were CDMA (Verizon and the former Sprint) based and did not really use SIM cards to identify their devices on their network until around 2011… and wasn’t until recently that most manufacturers either committed to or have already stopped producing CDMA radios for phones for use in phones on those networks, finally fully adopting GSM domestically.
Prior to GSM, let’s not forget there was TDMA which also did not use SIM cards, and instead used a devices ESN to identify to a network. The difference between now and then though is the advancement in automated technology that is now able to utilize web and application integration to allow eSim identifiers to be used to identify devices to networks not only almost instantaneously, but with consumer only input as opposed to needing to have a representative from the carrier involved.
T-mobile has a really cool way of testing this out with their Network Pass available through their app. Have an e-sim enabled phone? You can have a phone number with talk/text/data available on your device in the matter of minutes, no physical sim involved. Once the majority, and eventually all of carriers implement their own automated systems, physical sims will most likely be a thing of the past, and it’s not unreasonable to see that happen within 5-10 years, especially when you have companies getting pressure to do so by one of the largest handset manufacturers who are is longer producing phones with eSim in one of the largest mobile markets worldwide.
But yeah, let’s just attempt to hurl insults without any reasonable argument to back them up. I’m cool w/ it.