I am using a laptop with SSD ( Windows 10), and I have an external normal hard disk, with utorrent portable software on it. When I want to download movies, I would plug my external hard disk on the laptop, and start my utorrent portable.exe to do it.
So all of my torrent files, the torrent read/write and even the movies are located on my external hard disk, outside of my main SSD.
Given that the lifetime of a SSD is probably in total number of writes per cell,
That said, check out the lifetime of the SSD. It is probably in total number of writes per cell. As such, more writes means sooner death. If using it for bittorrent means you would use it more, yes, it will die sooner.
can I preserve my SSD lifespan this way, since the SSD should be completely unutilized when I am torrenting on a completely separately hard drive?