Would S3 exist in 500 years? Bezos would be long gone. Our tech would be long gone. I'd think about the only thing we could do the same is walk and open our mouth's.
And who knows what the unexpected looks like...Wars, political shifts, etc. Hell, until 2019, I thought toilet paper was unlimited. Once again, toilet paper is starting to look like the currency of the new-world.
:) That's a joke BTW. But is it? I don't want to go back to using squirrels as toilet paper!
Well, everyone was hyped on perl at the turn of the millennium. Yet not many people write it anymore. I keep waiting for the re-surge, but it just doesn't look like it is going to happen.
At nuclear waste sites, even the feds have come up with a few ways of saying "Don't enter. It is bad" with different languages, pictorial signs, and such.
It is really tough to figure out what the next few hundred years looks like. And to be a bit political, I don't think anyone saw the invasion of the capitol building in January.
It isn't easy to predict the future. With the original poster in mind, I think the best bet would to be with archive.org.
Maybe archive.org should provide this service. It could be a way to generate revenue - say "here is a thousand bucks, keep it for eternity."
I'm not sure I would want my thoughts to last that long though.
(And I'm still not sure that it would survive for more than a few hundred years.) Maybe the right thing to do is do something so great for society that they want to write books on you (eg: George Washington).