Stephen Hawking is arguably one of the greatest minds of our time. But like any genius, he didn’t spring forth fully formed like Athena from Zeus’s head. Before Hawking, the scientist, was Hawking, the postgraduate student. And while we can’t travel back through time (yet), we can at least try to get a glimpse of the young man of 24 through his 1966 thesis. Now anyone can try to do that now that Cambridge University has made it available to anyone for free.