The killer list app will appear when AI is better. Lists are very personal things. They can cause stress, they can be important or not so much depending on the context. They intersect work and home life. The killer list app for executives is their executive assistant. Once we have a little machine implanted in our skulls that is smart enough to make fun of its wearer, ala KSR&#x27;s 2312 qubit, the killer list app will remain elusive.