In this episode, I speak with Jonas von Essen, a Swedish 2x world-memory champion who has memorized 100,000 digits of Pi and has appeared on national talent and trivia shows such as Are You Smarter than a 5th Grader? and is currently preparing for Who Wants to be a Millionaire. He is involved in memory-improvement software development and is the co-founder of MemoryOS. He is extremely skilled in the art of memory and specializes in long-term memory for general knowledge.