The way I see it, backups are a strategy to reduce risk of ruin. For me, backing up to the Cloud is fine, because I find the risk of my home being broken into

The way I see it, backups are a strategy to reduce risk of ruin. For me, backing up to the Cloud is fine, because I find the risk of my home being broken into and everything stolen AND the cloud goes down AND the cloud services are completely unrecoverable is a small enough risk to tolerate. I don't think it's possible to have permanently indestructible files in existence over a given time period.