What do you guys think about the idea of putting dhamma material in analog and/or digital media, put this in airtight, weatherproof, waterproof, maybe even fireproof, containers and hide these at various places (dig down deep in the earth, hide in caves etc) with the intention that maybe sometime in the future, when most dhamma might have been lost due to nuclear war or whatever, it could be found and benefit people?
This could be done at many different levels of effort and budgets. We wouldn't know which would "survive" anyway, and which would be able to be understood by any eventual finders in the future, be it due to language or the chosen medium. So, the more people just ...putting some dhamma on a cheap usb stick or printing a couple of pages on their printer with the basics of buddhism, putting it in some box and try to waterproof it and dig it down or something... the higher the chance of some of these "dhamma treasures" for the future surviving to maybe one day be found by someone who really needed to find it. That would be a happy thought.
What would cost most would be the "time capsules" I guess. Beyond that, usb sticks are cheap for example. If digging down analogue media, for example books, one could take them apart and laminate every single page to further provide protection against time and the elements (well I hope that laminating paper really does provide better longtime protection and that the laminate itself will not speed up the decomposition of paper!).