Comment by Joel_Mckay

With intermittent use one may get a lot more life out of the SSD than other users, but eventually flash will run out of spare-sectors and start to fail.

Most M1 systems I saw use on-board BGA110 NAND flash, and thus maintenance/upgrades on the SSD are difficult. Most users don't have a hot air rework station or x-ray inspection machines to do this modification correctly.

The MTBF statistics can move around a lot depending on the use-case, but eventually people will run out of luck ( https://en.wikipedia.org/wiki/Mean_time_between_failures .)

Not sure why people get upset by this fact, as not all Apple hardware models were built to be disposable. =3