I remember when the first LOCKSS papers appeared, the idea of "Lots Of Copies Keep Stuff Safe" was so obvious, once explained. The example used at the time was

I remember when the first LOCKSS papers appeared, the idea of "Lots Of Copies Keep Stuff Safe" was so obvious, once explained. The example used at the time was "can you imagine that we lose the Harry Potter book? No, since it's everywhere!".