[bzzzt]

Most flash memory will happily accept writes long after passing the TBW 'limit'. If write endurance would be that much of a problem I'd expect the second hand market to be saturated with 8Gb M1 MacBooks with dead SSDs by now. Since that's obviously not the case I think it's not that bad.

[AnthonyMouse]

> Most flash memory will happily accept writes long after passing the TBW 'limit'.

That's the problem, isn't it? It does the write, it will read back fine right now, but the flash is worn out and then when you try to read back the data in six months, it's corrupt.

> If write endurance would be that much of a problem I'd expect the second hand market to be saturated with 8Gb M1 MacBooks with dead SSDs by now.

That's assuming it's sufficiently obvious to the typical buyer. You buy the machine with a fresh OS install and only newly written data, everything seems fine. Your 30 day warranty/return period expires, still fine. Then it starts acting weird.

[bzzzt]

> That's the problem, isn't it? It does the write, it will read back fine right now, but the flash is worn out and then when you try to read back the data in six months, it's corrupt.

SSD firmware does patrol reads and periodically rewrites data blocks. It also does error correction. Cold storage is a known issue with any SSD, but I don't have any insight in how bad this problem is in reality. Of course it will wear out eventually, but so will the rest of the system components. There's nothing to be gained by making SSDs that last 30 years when the other components fail in 15.

> Then it starts acting weird.

Is that speculation or do you have any facts to back that up?