Figure out a way to stop humanity from imploding for 500 years and realize that we're, effectively, like thirty years into using this internet technology thing.

Figure out a way to stop humanity from imploding for 500 years and realize that we're, effectively, like thirty years into using this internet technology thing. So it's quite likely we'll see some really serious infrastructure changes before we get to 500 years out. My more serious advice is to instead look at the best options for long term persistent data storage and assume that people in 500 years will need to load your site using specialized technology like folks going to the library to view VHSes.