Bob has completed the following tasks: Still working on: Buy more socks Finish writing novel Learn to play the harmonica Perfect the art of extreme ironing Win a Pulitzer Prize Defy the laws of physics Master the ancient art of ninjutsu Make the perfect grilled cheese sandwich Learn to communicate with cats Build an army of robotic ninjas Cook a seven-course meal for 10,000 people Become the world's greatest juggler Hold my breath for 1 hour 37 minutes 12 seconds Cook a cake that's also a cake Write a 50-page essay on the history of lint