No way. My simple experience says SSDs are good for the longest time of storage.
Way back in 2009 when I bought my NoName SSD (1Tb) it's been in service (no power supply) for 10+ years.
R-W cycles are endless.
We're probably at crossed purposes.
I'm talking about drives being unused (without any power) for a period. Depending on the type SSD they can have bits change state from 1 to 0 in a matter of weeks. Drives made for, and sold as data storage use different memory to those used for (for example) boot drives on PC and could be expected to hold storage for at least months and, probably, years.
I've had this happen to an SSD I was using to store data on my music server. It remained unused and powered off for around three months. It had damaged files when powered back up. My practice now is to have the OS do a sanity check on any SSD that's been off for months. Almost always files are reparable because the file systems have error correction/CRC checks etc. But, eggs and baskets...
What I
think you're talking about is disk 'wear' when cells can only be deleted/written to a limited number of times, so that a drive that has lots of delete and write operations starts to have cells fail, and, gradually, the capacity of the drive declines. Data is never lost. Modern disc controllers manage this very well, and the memory itself has improved a lot over the years to the extent that, for most domestic situations it's not an issue.
Personally, I'd not use SSDs for long term backup. Anything where you wouldn't plug the drive in and use it for several months at a time.
