Every time you write to an SSD, you damage it. It WILL eventually fail (though it might be quite some time after the computer has become obsolete). I have eight-year old hard drives in my old computer that are running fine.
My new machine has an SSD as its OS disk (and for those pieces of software that programs insist on installing on C:). I have, however, made sure that "everything else" -- including e-mail and browser temp files -- are on a hard drive. The hard drive comprises two 2TB disks arranged in a RAID 5 configuration. I will eventually start backing IT up, as well.
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