There are lots of computer experiences that come and go. The apps, the bugs, the features... and they all fade away with time. But there's one thing that's burned indelibly in our memories: the restart screen. Just like holding a wife's hand while she gives birth, this excruciating, drawn-out experience actually brought us closer to our machines — and we didn't know it until The Restart Page let us play it all back, one OS at a time.