Data striping

So your point is extremely right that first we need to understand the potential risks of any tool use in our system, say hard drives, we know the probability of them going out of function.

Then we have RAID 0, then we have backups, then we have, so we invest, so we have some knowledge on the probability of bad things happening.

And we invest to reduce the risk when it is of value to us.

If I'm just having a hard drive with the Windows 98 to play my Doom, Or Quake 2, like, okay, it can die.