If I had been the project leader on this it would have had an even greater capacity because I would have taped a couple of keyring flash drives around the edge.

https://reddit.com/comments/1bfu9xo

Have you considered Spiegel im Spiegel.

Sugar is used as a preservative but until you make your own jam you have no conception of how much sugar is used, jam is just jelly for adults.

Self preservation is a natural high priority instinct in all organisms so most people are fairly pro about it and any few that are not will not last long enough to comment here. If you are referring to cryogenics when you say self preservation then I regard that as just a slightly desperate and unscientific example of the instinctual self preservation I mentioned first.