Brief interview with Albert-László Barabási about the five universal laws of success. Ocean warming is accelerating. Steven Strogatz on AlphaZero and the future of AI. The conceptual limits of machine learning. A breakdown of the costs proves tickets in London's West End are not a rip-off. Tattoos are copyrighted. How radical 1960s architecture got it so wrong. Film footage from Paris from around 1890 with speed corrected, image stabilized and sound added. 180,000 forgotten photos reveal the future of Greenland’s ice. Longform's Best of 2018. And more.