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How do you know it needs 4 or 5 more years to work reliably? Apple is building off of Intel’s modem IP that they acquired in 2019 and it’s been 4 years since Apple took over and started development already.
Because Apple does not have any history with good RF design. Because the Intel modem was not so good to begin with. Because Apple bought the Intel stuff for the patents, not the design.
 
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