The worst story I read was of someone working on his PhD thesis for 2 years, and then he forgot his laptop in a bus and everything was gone because in 2 years h

The worst story I read was of someone working on his PhD thesis for 2 years, and then he forgot his laptop in a bus and everything was gone because in 2 years he didn't store the files anywhere else. I personally met a teacher who stored the only copy of her students' final exam submissions on her everyday thumb drive without backup. For many people technology really is magic.