Reminds me of a proposal I read about once for a time capsule -- the kind intended to survive the fall of civilization and to help reboot it. It would be plain

Reminds me of a proposal I read about once for a time capsule -- the kind intended to survive the fall of civilization and to help reboot it. It would be plain human-readable text and diagrams engraved into a hard disc of some stable material, starting out big and legible at the edges and gradually getting smaller and smaller as it spirals towards the center, until it's microscopic. The text would start out as a Rosetta Stone type of thing, to try to establish a common language. Then as it got smaller, it would describe how to grind a hand lens so you can read further. Then even smaller text describes how to build a microscope. Maybe somewhat further on it talks about CD-ROM drives, and eventually transitions to /that/ format...