"We're living in the perpetual present, and that is dangerous."

I love the idea of version control for the internet. We are forced to use updates, even if we don't want them. The idea of being able to use a site's specific version is very attractive. It becomes even more interesting when you think of the internet over a much longer time horizon, say 200 years in the future where historians can go through all of our historical records. Much of this might be lost if we keep it in walled gardens as it might be lost forever unless the owners of that data release it.