They are dynamic- The "add-ons" are more frequent than the "accomplished" on mine. Some items are taken off because I changed my mind about wanting do them. I'd have to live into the early 100's to do what is on it now. Prioritizing is the hard part. No way is it chiseled in stone. Heck, my wife and I are talking about long bike tours, and other activities that have only been on our mental list which changes pretty rapidly.