It would require a trust, a fund and a dedicated organisation, possibly using lawyers. Legal documents relating to land and titles have survived for hundreds of

It would require a trust, a fund and a dedicated organisation, possibly using lawyers. Legal documents relating to land and titles have survived for hundreds of years in this manner. It's a social not a technological problem. But how to do it is much easier to solve. Why to do it is the actual problem. What to keep and when to keep it without knowing the future. How does anyone know that the 100 photos that a person from Morocco put onto Flickr 5 years ago would have value in the future? Why should those be archived? In 200 years these photos could be immensely valuable. How can this potential future value ensure the archiving of the photos today? Is there economics for this?