That's been the case since 2016, after that everything is soldered in, so you can't change anything. And even before that in the 2012 iteration you could only

That's been the case since 2016, after that everything is soldered in, so you can't change anything. And even before that in the 2012 iteration you could only change the SSD with the RAM still being soldered in. So all in all - it's been almost 10 years since they've been aging faster.