Mdthbs

I’m a wealthy billionaire dying of terminal illness. The world I’m currently living in is clearly on the brink of a world ending nuclear war. I predict that the world ends next month. I am putting together a large “time capsule” of sorts, for future people in the post-apocalyptic world to use to rebuild.

I am able to use 5 billion dollars on my little project. My question is, what would be the most valuable tools/information to stock my Time Capsule with? The purpose of it is to help people reduced to about 1890s style living make their way back up to modern standards of living.

By 1890s tech, I mean industrialized production is in its infancy, most people farm, infrastructure in smaller towns is lacking, and no motorized transportation.

Unsurprisingly, some people have already put a lot of thought into this sort of problem, and come up with some quite neat ideas. I particularly like the Rosetta Disk, part of the much larger Long Now project (well worth a closer look, especially the 10000 year clock) and a prototype of their information-preserving library idea. The Rosetta Disk in particular is intended to preserve language but the technique is a general and clever one:

The actual data needs a decent microscope to read (which is 1800s tech, certainly), but there's a lot of space on that disk and the neat design around the edge encourages closer investigation and progression in microscope technology. It can be combined with an even higher density storage format that might need an electron microscope to read (scanning electron microscopes are 1940s tech, incidentally). The lowest resolution methods store 5000+ pages on a disk, both text and images. Optical reading techniques get you a maximum density of about 180000 pages per disk. Electron microscopy could get you vastly more than that. For reference, the last print edition of the Encyclopædia Britannica was a little shy of 33000 pages.

Etch you a whole bunch of these with different contents, and maybe provide some suitable optical equipment to get people started (or at least, simpler and more robust gear that might help them male a suitable microscope). Oh, and stash them in more than one place, to increase the chance it might be found and some idiots won't just break them.

The problem you face is that what you need to preserve is everything, because modern society and technology is deeply interwoven and built upon our previous discoveries and inventions and experiences that teasing any one thread out is all but futile.

My personal target would be something like antibiotics, because that leads you to generally survivable surgery which is a huge step towards improving life and lifetimes for everyone. Problem is that there's so much chemistry and biology required to build you up to that point, and so much engineering required to design the equipment to brew up the stuff, and so much metallurgy and plastics production needed to make the gear that you have to provide instructions on all that as well or you'll have accomplished nothing of use.

So, there you go. Most valuable information? All of it.

But don't forget to include instructions on how to read it.

As a matter of fact, I suggest in this case reading a story: Earth Abides by George R Stewart. A short synopsis of the book can be found in an Extra Credit's talk.

Basically, the story explores how the knowledge that made the world before the fall run - all the high technology - has become mainly obslete by the fall as it does no longer provide a benefit for the survivors in contrast to more rural and basic survival skills and knowledge.

Society after a nuclear war will be back to about a late medieval ages, at best a renaissance, level of technology, only in some pockets in the early modern age. While the knowledge might survive in the shape of libraries or time capsules, the post-fall society will not benefit from this knowledge as it is not ready for it (anymore). However, a time capsule will not be totally in vain: preserving knowledge over this dark age in some kind of time capsule will give later generations - once they are ready for it (again) - a headstart with the new-old technology.

Contents of the time capsule

Now, what shall we put in the time capsule? First of all, it needs to be sturdy enough to survive a nuclear war and some maybe 100 years to allow society to come to terms with itself again and then another 100 to be ready to advance again. This rules out pulp-paper and microfilm for the contents but demands acid-free paper or metal engraved information in a method that can withstand the ages of time. It also has to allow deciphering the information even as the language has massively changed after these 6-8 generations. Maybe metal engraved slabs might do the trick, and writing it down in at least two, better three languages akin to the Rosetta stone might help.

One of these languages should be Math, and at least one portion of the capsule should be dedicated to mathematics, starting with the numerals and basic geometry, which allows to easily build a dictionary to transmit basic ideas.

Basic architecture (as in the design of the arch etc) should be another thing that can be easily used in the front portion of the time capsule, as it can be graphically shown and explained, making it also a good part to teach Ye olde language. Starting from there basic concepts of biology (Mendel) and physics (Kinematics) might follow, then spreading out into fields like practical chemistry (gunpowder) and engineering (how to cast steel)

I would advise against packing tools and instruments - a society develops always the tools it needs to survive. If it can't fabricate a tool it benefits from, it doesn't need it and is not ripe for it. It would be a waste of resources.